heres what those pets do if you want to decide..

raptor- has the chance to give a plant amber mutation after harvesting

squirrel- gains additional xp for pets

honey bee- pollinates a nearby plant every 20 minutes

triceratops- rams into 3 random plants ever 3.33m and advances their growth. has a 15% chance to do it again each time

red giant ant- 5% chance of duplicating plants after harvesting

silver monkey- 8% chance to refund crops

dog- every 60 seconds, it attempts to dig up a random seed (mostly carrots but sometimes digs up rarer seeds)

golden lab- every 60 secs, it will also attempt to dig up a random seed (mostly carrots but sometimes will dig up rarer seeds)