>>987658>breedspecies, mate.
Anyways, I suggest G. pulchripes. They are colorful, relatively docile, extremely hardy, long lived, easy to care for, affordable and get quite large!
Tips:
Research!
Don't buy from a petshop.
Don't buy a heat mat/heat rock/heat lamp/humidistat/pet store brand substrate - It's a waste of money.
Try and get a female.
Get a subadult or adult.