Ferrets, absolutely ferrets! I haven't actually owned one myself but my uncle had one, and I've always wanted one of my own. I am still living with my family due to health issues that prevent me from being on my own, and my parents don't want a ferret, sadly. I've handled a few ferrets before, though, and I instantly fell in love with each one of them! I've heard all these bad rumors about ferrets, saying that they're mean creatures that attack people and can't be handled, but I've done a lot of research on them and I definitely don't believe that to be true. If the ferret is properly handled and socialized they are very loving little friends! All the ones I've had experiences with were well handled and friendly. One of the biggest reasons my family objects to having one is because of the smell, but I honestly don't think the smell is very bad, just strong and different from normal. I've seen so many cute videos of them online where they get into everything and collect random items throughout the room. So adorable!
Even if I could make an argument strong enough towards getting a ferret now though, I don't think it would be the best idea at the moment. My cat is a born hunter and she'd take one look at that thing and think, "mmm, lunch!" I'd never giver her up in exchange for a ferret, but if I was getting a new pet a ferret would be one of my first choices.