So below i will write some names for the current creatures as well as for the next 2 evolutions.

#1 Fire Wolf

Smoky (for a young fire wolf that hasn't yet so many strong fire attacks)
Ignilf (from ignis and wolf)
Pyrofang (for the final evolution of a more strong like fire wolf

#2 Grass Raccoon

GroveBandit (self explanatory as raccoons also called bandits due to appearance)
GroveBlade (in case it has a blade like attack or his tail resembles)
GroveBane (for a more stronger looking raccoon which seem fearless)

#3 Water Whale

Orcy (from Orca)
Orcami (from Orca and Tsunami)
Orcalith or Orcanox (for a stronger looking one)

#4 Electric Rabbit

Volthop (for a jumping electric rabbit)
Electrobit (from electric and rabbit)
Stormhare (from storm and hare which means rabbit as well)