Hi and welcome to the forum!
Oh my! Gimli is SO handsome and cute! I love his coloring and his long, white “tie”! That’s great that he is so good with coming on your hand for mealworms! I think by his looks, he is a Hybrid hamster (mix of a Winter White Russian Dwarf and a Campbell’s Russian Dwarf, you can just refer to him as a Campbells as most WW and Campbells are hybrids). I’m exited to hear more about how taming goes! If you have any questions or concerns feel free to ask! I can’t wait to see more of you guys around the forum!