Tomi

The only Tomi I've ever met was a girl (Tomika, I think).

I don't like this spelling, it makes me think of that obnoxious Tomi Lahren.

I know a guy called Thomas who shortens it to Tomi. I think it looks nicer and more mature than Tommy, but still sounds cool and exotic.

Nice name, very simple. I wouldn't give that name to my child though, it sounds way too imature and nerdy like a boy who never baths or takes showers.