Do a search. MY recommendation is call several builders.
See how they treat you, see if they answer the phone and/or call you back. Keep in mind, it's prime season for builders, off season for the northern guys...so, shops are filling up...
See how they treat you, how they listen, if they ask the right questions, etc. And of course, pricing.
One more thing to consider....support those that support this site. There are plenty of good builders, one that put their hard earned money into this site should be your first call.
Otherwise...like most things, this will turn into insert your favorite builder name here thread.