Check the pastebin for the pokemon that evolves by level:
https://pastebin.com/Ts2A9giR

>Charcadet->Armarouge:
Give 10 Bronzor fragments to a man in a village called Zapapico (close to the poison team star base) and he gives you the Auspicious Armor item to evolve it.
>Pawmo->Pawmot, Rellor->Rabsca, Bramblin->Brambleghast
>Walk 1.000 steps with the pokemon outside following you
>Capsakid->Scovillain:
Use Fire Stone
>Girafarig->Farigiraf:
Learn Twin Beam (lv. 32)
>Gimmighoul->Gholdengo:
Collect 999 coins and level up. You collect coins from Gimmighouls on the field, knocking out Gimmighoul chest form gives you 50 coins so just KO 20 of them to get 999
>Primeape->Annihilape:
Use Rage Fist 20 times

Currently unknown:
Kingambit, Palafin, Maushold (?), Dudunsparce (?)