I'm at the .karma files of my first playthrough and with a bit of luck and mostly stumbling into teams I got here, however I quite lost at the idea of building cohesive teams I never played past 4th gen games and back then almost anything was damage moves go brr. So it actually took me a quite a bit to understand some of the things this game offers. That being said I just captured all the 3 legendary birds and I want to use them going forward, my idea was okey, one team with each bird one with each weather should be okey. Tried to look some guides around but it's a bit harder to get up to date guides or that take one slot with the legendary birds.

I crafter 3 teams but I don't get the feeling they are as good as they can be, I do still have to ev train them and fix some natures, but before putting more time onto this endeveor I would like some advice.

Sunny day team:
Lax Moltres Pressure (Heatwave, Solar Beam, Sky Attack, Roost)
Rash Torkoal w/Heat Rock; Drought (Stealth Rock, Eruption, Solar Beam Shell Smash)
Serious Venasaur w/Venusarite G; Chlorophyll (Solar Beam, Sludge Bomb, Growth, Leech Seed)
Calm Alolan Exeggutor w/Sitrus Berry; Harvestr (Giga Drain, Dragon Pulse, Pyshic, Grassy Terrain)
Mischievus Ninetails w/HeatRock; Drought (Nasty Plot, Solar Beam, Heat Wave, Will-o-Wisp)
Modest Heliolisk; Solar Power (Thunderbolt, Hyper Voice, Volt Switch, Grass Knot)

Rain Team:
Timid Zapdos w/Zap Plate; Pressure (Thunder, Drill Peck, Weather Ball, Roost)
Adamant Peliper w/Damp Rock; Drizzle (Hurricane, Hydro Pump, U-turn, Tailwind) #I know shouldn't be Adamant
Bold Shiinotic w/Crest; Rain Dish (Leech Seed, Giga Drain, Moonblast, Sludge Bomb)
Adamant Swampert w/swampertite; Torrent (Waterfall, Hydro Pump, Earthquake, Ice Punch)
Bold Goodra w/Leftovers; Hydration (Dragon Pulse, Thunderbolt, Sludge Bomb, Surf)
Modest A. Frosslass w/Splash Plate; Adaptability (Hydro Pump, Soak, Giga Drain, Water Spout)

Hail Team:
Quirky Articuno; Snow Cloak (Blizzard, U-turn, Roost, Tailwind)
Hasty Aurorus w/Light Clay; Snow Warning (Aurora Veil, Blizzard, Power Gem, Earth Power)
Calm Empoleon w/crest; Torrent (Ice Beam, Scald, Flash Cannon, Hidden Power [Fight])
Docile Glaile w/Glalitite; Ice Body (Return, Ice Shard, Crunch, Spikes)
Lax Glaceon w/Crest; Ice Body (Blizzard, Baton Pass, Barrier, Shadow Ball)
Timid Alolan Ninetails w/light clay; Snow Warning (Aurora Veil, Blizzard, Moonblast, Freeze-Dry)

I've most of the pkmns avaible in the paragon path, only need the 3 regis, the 3 beast and the 999 black prism mon on Luck's tent.

Any advice will do! Thank you!