What is the best type of pet to have as a buddy?

ive only really had fish but ther enothing close to a buddy like, something like a dog or a cat. pets are also pricey and im allergic to cats and dogs plus my home is kinda messy. i do wish i could get something besides a fish but you know it is what it is.

so what type of pet do you have or what is the best type of pet to have?