I would say Leopard Gecko, Crested Gecko, or Bearded Dragon.

Crested geckos thrive at room temps, and don't have to eat crickets as long as they are fed the Repashy Diet.

The only thing about beardies is as babies they eat, and eat and eat crickets.
So the cricket bill is kind of high until they slow down a bit. If I could just open my wallet and let him eat right out of that, it would work out great, thats basically what he is doing as of now anyway.

However they get a little bigger than your average gecko, a little more tolerant of handling, and are active during the day.

They do require a much larger enclosure as adults than the geckos.