Which ones of these would make the best pets?
Small lizards and so on don't need domesticating, since they are being usually held in terrariums.
If so,they're not really pets, more like captive toys.
Fennec can be domesticated, it's not very easy
Not true, Fennecs can be somewhat tamed. Domestication is an long and ugly process that takes hundreds and hundreds of generations to be successful.
Capybaras did went through domestication both historically and currently
Also not true. Capybaras never went through domestication. It's just that they're very docile