I used this site for creating my brand name and it was really good that all my friends and family like that name
Couple Name Generator - Couple Name Generator combines two people?s names into the unique supercouple name
Instant Username Search - Check out if your username is available
Username Ideas - Need username ideas? Username generator helps you to create a unique nickname for social networks, media, email, games or whatever you want.
Namechk - See if your username is available on 100+ social networks
Name Generator - Generate original names using Markov chains.
Handlescout - Get notified when a Twitter username becomes available