Doing this in brief since going into detail on six teams would... take forever.
You ought to do a little more research into the most ideal moves for a typing. For example, Crabhammer > Waterfall on everything except a Sheer Force set. Ice Punch is outclassed by moves like Ice Hammer, except on Iron Fist sets. (But... that means running Iron Fist which is its own problem.). Cross Poison is beaten by Poison Jab or Gunk Shot. Stuff like that. This is forgivable though since some of the best moves are exclusives not usually seen in standard or PvE play.
Also, four attacks and a choice item does not make for a good set. Momentum is king in BH and pivoting is incredibly common, so being choice locked into a move with bad coverage or poor power will get your butt kicked. A team full of choice items is just begging to struggle. You also need to consider what your coverage moves are actually hitting. Like Signal Beam on Ogre. Most Grass-types in BH are neutral to it (Ferrothorn, Kartana, the stray Venusaur) with Sceptile is the only weakness, who gets bopped by superior Ice or Fairy coverage. Ogre's STAB options, meanwhile, cover Psychic types just fine and usually hit harder since Water has better moves than Bug.
I mean, these teams could probably bludgeon their way to around 1200, 1300 if you're lucky, but you won't get beyond that.
I would strongly recommend looking at sample teams, which you can find here: https://www.smogon.com/forums/threads/balanced-hackmons.3587475/#post-7094085 Most of these have descriptions that'll explain what they're choosing and why they're choosing it, as well as how to use the team, so they're a great starting point if you're new to the meta.
Once you start getting the hang of things, you ought to visit the Central Resources and look up things such as the Role Compendium, Setpedia, and other resources there to get started on building your own teams. It has lots of good info made by the community. https://www.smogon.com/forums/threads/balanced-hackmons-central-resources.3593766/
Team 1: Mewtwo wants other abilities, like Tough Claws. Adapt has slightly stronger STAB moves than TC, but not enough to justify dropping coverage power, usually. Scarf Ogre does... okay damage with Spout at max HP, but that's it. Fairy Aura is kind of a meh ability, there's much better for Xern, like Pixilate. Thundurus is just bad in BH. Therian form has some minor niche, but that's it. Gigas really wants Poison Heal and Facade over Guts. Guts can work, but you really should switch to Flame Orb if you insist on it. Genesect is horribly outclassed in BH and really ought to be avoided. You also have a loooot of really weird coverage moves, like Signal Beam on Kyogre. What is it covering? You also have moves that don't match your choice item or attack stat, like Ice Beam on Mewtwo. (Xtwo can go mixed, but not with Band Ice Beam.) You really ought to tone down the Choice items, since you'll get punished hard by pivot heavy teams, which is the majority of the decent to good ones.
Team 2: Pure Power is banned. Scizor is kinda meh in the current meta, although the defensive typing is pretty good, but Primordial Sea is a bad ability for a Choice mon. Lotta weird coverage again. And too many Choice items.
Team 3: This is the same as team 2.
Team 4 and 5: Everything I said to 1 and 2 apply since it looks like these are the same sets, just mixed and matched slightly.
Team 6: Most of the sets, see above. Swampert is a pretty good mon, but Sap Sipper is better for defensive sets. Not that Grass attacks are common anyway outside of Sceptile and Kartana. Occasionally you'll see like... Bullet Seed Skill Link Kyu-B to hit Ogre, but it's extremely rare. Drapion is just bad. Neat typing, but no stats to back it up.
Team 2: Pure Power is banned. Scizor is kinda meh in the current meta, although the defensive typing is pretty good, but Primordial Sea is a bad ability for a Choice mon. Lotta weird coverage again. And too many Choice items.
Team 3: This is the same as team 2.
Team 4 and 5: Everything I said to 1 and 2 apply since it looks like these are the same sets, just mixed and matched slightly.
Team 6: Most of the sets, see above. Swampert is a pretty good mon, but Sap Sipper is better for defensive sets. Not that Grass attacks are common anyway outside of Sceptile and Kartana. Occasionally you'll see like... Bullet Seed Skill Link Kyu-B to hit Ogre, but it's extremely rare. Drapion is just bad. Neat typing, but no stats to back it up.
You ought to do a little more research into the most ideal moves for a typing. For example, Crabhammer > Waterfall on everything except a Sheer Force set. Ice Punch is outclassed by moves like Ice Hammer, except on Iron Fist sets. (But... that means running Iron Fist which is its own problem.). Cross Poison is beaten by Poison Jab or Gunk Shot. Stuff like that. This is forgivable though since some of the best moves are exclusives not usually seen in standard or PvE play.
Also, four attacks and a choice item does not make for a good set. Momentum is king in BH and pivoting is incredibly common, so being choice locked into a move with bad coverage or poor power will get your butt kicked. A team full of choice items is just begging to struggle. You also need to consider what your coverage moves are actually hitting. Like Signal Beam on Ogre. Most Grass-types in BH are neutral to it (Ferrothorn, Kartana, the stray Venusaur) with Sceptile is the only weakness, who gets bopped by superior Ice or Fairy coverage. Ogre's STAB options, meanwhile, cover Psychic types just fine and usually hit harder since Water has better moves than Bug.
I mean, these teams could probably bludgeon their way to around 1200, 1300 if you're lucky, but you won't get beyond that.
I would strongly recommend looking at sample teams, which you can find here: https://www.smogon.com/forums/threads/balanced-hackmons.3587475/#post-7094085 Most of these have descriptions that'll explain what they're choosing and why they're choosing it, as well as how to use the team, so they're a great starting point if you're new to the meta.
Once you start getting the hang of things, you ought to visit the Central Resources and look up things such as the Role Compendium, Setpedia, and other resources there to get started on building your own teams. It has lots of good info made by the community. https://www.smogon.com/forums/threads/balanced-hackmons-central-resources.3593766/