The following is an excerpt from the CoachStart Manual.

You can search for names and variations at www.MyDomainFriend.com — a very powerful free tool.

But don’t register the domain there as it’s a bit expensive.  Once you know the domain(s) you want, go to www.godaddy.com and register a name for only US$9 per year.

You’ll also want to check the name is not trademarked in the country where you’ll do business.

Don’t get discouraged if even the first twenty names you want are taken. This is just the way it is.  Keep being creative and you’ll soon have your perfect domain name.