[sarasi]

Youta is a good one and more common among guys in their teens and twenties. Of course the "ta" used in some men's names in Japan (Tarou, Kentarou, Yuuta etc as well) isn't negative- it has the idea of "strong and steadfast" in it.

Another name using the same "you" character would be Youki, with various possibilities for the "ki" kanji.