Raccoons are cool. They seem to be in the early stages of self-domestication, which is probably how we got cats.

I would love having a squirrel as pet. Unfortunately most squirrel types don't do well in captivity because they are too anxious. I nursed a baby squirrel once as a volunteer and it would just sleep in my shirt pocket or bra and be the cutest little thing until it was old enough to start learning to be a wild squirrel.

Octopi. They're freakishy intelligent too.

Capybaras, hands down.

Cats would be neat to get to that point.

Bats. Imagine having a friendly familiar. They could also be used to carry messages.

Foxes. Like a dog, but not.
Thanks to Russia, we're already partway there.

I've always wanted an ocelot.

Otters. They are just too damn cute.

For me, it's Racoons, Squirrels, or Crows.

I used to have a Robin friend, who would keep me company while I gardened, so he could grab a juicy worm from the ground I was turning. I'm currently friends with a pair of Sand Hill Cranes who spend every night in front of my house. I talk them nearly every night. They know me well, I stand right next to them, they aren't afraid of me at all.

Cats

Tapeworms. Lil' butt-buddies.

I want a guard cassowary

I still think a fox is manageable. Cat software running on dog hardware seems...interesting

BEARS! Gahhhh they look so cuddly and cuuute.

Having a domesticated bird would be really cool, I think. Like a roadrunner or puffin. A kiwi? Imagine having a hummingbird ride in your front shirt pocket?

Hyenas 

Whatever the Chihuahua version of a giraffe is.

Maybe a large seal species. Something to ride in the water, but that could still come on land and fall asleep by the fire.

If you could miniaturize them I would totally take a house hippo

Honey badgers...

Wombats, they are super cute and apparently quite smart.

https://youtube.com/shorts/IdgFAIo6NMA

I would also love to see people riding a diprotodon, which is a distant relative

I want a pet opossum!

Giraffes of course.

Silly question.

Hmm, if I could choose, I would much rather imbue cat behavior onto an animal than dog behavior. Cats rule, dogs drool.

ferrets are already domesticated, but i think that having more of/some other domesticated weasel would be neat. imagine pet stoat, or mink, or perhaps wolverine

I would like a dog-sized elephant, please and thank you.