Crested geckos. No heat required as long as they're indoors. As long as you mist them, its fine. And no bugs needed to feed. Just powder mixed food. They're also great display animals.
I would be against guinea pigs. They're so filthy. They have a high flight response, so they spook easily. Some lines of pigs even faint. Lol.
I would have suggested ferret, but owning them isn't cheap. However, they're like puppies who never grow up. All they want to do is play play play. It's a good alternative to a dog.
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