The starters of the main class:
Alex(character based on me)- Grookey
Dan- Chespin
Joe Lee- Treeko
Ben- Turtwig
Nevaeh- Bulbasaur
Sophie- Seedot
Katie- Bellsprout
Emily- Rowlet
Harry- Houndor
Aiden- Charmander
Alan(character based on ProjectRun)- Torchic
Jayden- Litten
Timothy- Tepig
Olivia- Scorbunny
Ceris- Chimchar
Amelia- Growlithe
Adam- Squirtle
Samuel- Poliwag
Joe Smith- Lotad
Annie- Mudkip
Mia- Sobble
Ava- Tympole
Luna- Totodile
Nova- Piplup
Nick- Machop
Michael- Brilug
Jennifer- Shinx
Zoe- Toxel
Teacher's pokemon teams:
Battling teacher: Mr Miller: Golem (Alolan form), Aggron (Mega), Pangoro, Talonflame, Sonix and Collactis
Strategy teacher: Mrs Brown: Sharpedo, Walrein, Goobeast and Gyarados (Mega)
Pokemon knowledge teacher: Mr Clark: Grimmsnarl (Dyna-max), Lapras and Zorua (kind of like Ash's Pikachu, it just doesn't want to evolve even though it's past the level and Mr Clark is fine with that)
Normal teachers:
Math teacher: Mrs Martin: Ninetails (Alolan form)
English (I don't what language in pokemon for humans is so I will say it's English) teacher: Mr Philip: Femury
Science teacher: Doctor Wilson: Crobat
Form teacher (He is another battle teacher but teaches other classes): Mr Davis: Metagross, Malamar, Obstagoon, Dragapult (Dyna-max), Tusskle and Syther
There are other teachers that aren't as important but I will put their pokemon down at a later date.