Celtic Heroes

I try and find something that relates to the character class I am creating, spend 45 mins researching names, find out that the first 20 or so I thought of were already taken, then give up and start trying random combinations of names until one pops up that I can live with like Gefiltefish.

Think about what class it is, then think about something you like related to that class, if its an icemage called it SnoCone or Popsicle, a fire mage could be called Char or Coal or Cinder. Ranger: Target or BowToMe.
Warrior- BashAndWhack, ShieldLump or Hammerhead

Druid: WiseTree or MagicPlant or Growth or something druidy

Rogue- Dishonor, Caught, Cloak/Cloaked.

Hope you pick one of these names, keep in mind that it may be already taken!