if you mean rejuv then i say for fire -cinderace late game,infernape,blaziken
water-swampert,empoleo (kinda good),feraligater is extremely great with crest becames a monster grrat in underwater battle against culiver clan
grass serperior,but (grass is not that good except valeriemy opinioin though can argue)
other than starters nidoking-poison good against mon in its speed tier or slower like lilligant granbull
golisopd great bug mon with first impression makes it a good mon against fast glass cannon which have weakness to bug like greninja ,alakazam,
boltund is really good with its crest melia's mon like togekiss
talonflame with acrobactics is great in bug gym grass gym
in v12 lycanroc dusk was a extremely great ,now its not that much available
obstagoon not great offensively but in melia's battle the aegislash can be dealt using obstruct a non contact move and and night slash