Cuppajo has passed on a fine resource for naming your hero: The Phrontistery, a collection of great and often obsolete words. Just on one page, I found some great names whose meanings would make for fine hero names:
Gablock, Gadarine, Galanty, Galeate, Galliard …
Hey, it’s gotta be better than dYYN0m8te! or something like that, and a lot less likely to be taken than Captain Thunder.