what should I put in this tank?

hey guys, this tank was on sale. It is a 20 gal 19.1 in Lx 16.6 in W X 22.4 in H. The only thing I can think of that I could put in here are green anoles, which I’m not opposed to once I do more research on them, but I’m wondering if you guys know anything else that could go in that size tank. And if that’s inappropriate for green anoles please let me know, but based off my research, it said that that’s a good size tank for them.