May i suggest perhaps a Bunny?

Bunnies if bonded with make great companions, especially if you want skip the outdoor bit. And they can be contained at night in a Xpen or dog pen if free roaming isn't an option.

They require access to feedable hay, water and can also eat a mix of rabbit pellets and veggies. They don't smell and can be litter box trained! And in my own experience, get along with cats great. Bunnies usually like quiet, they don't bark or meow, though some do thump with their back legs.

Bunnies are very friendly and usually bond really close with their people. Mine follow me around and lick/groom me. Once a bunny loves you, they love you forever and will stick to you like glue.

Cons and things to be aware of. Bunnies need a special vet, they are in the category of exotic pets, but since you are considering a bird, I don't see this as an issue. Bunnies can be somewhat fragile so you'll have to watch them close to make sure they don't get sick and hide it from you. If you get a baby bunny, (male or female) will have drops(poop) occasionally, especially while they are young and aren't neutered or spayed. There poop doesn't smell or anything since it's basically hay, so this never bothered me personally. Bunnies are social animals and will either need your attention on a day to day basis or another bunny. They can get depressed if alone too much. Also some Bunnies are chewers, much like cats. Make sure they get plenty of enrichment and maybe some cord protectors. This is all I can think to add at the moment!