First of all; Thanks for serving!
Did you get your CERTIFICATE OF ELIGIBILITY from the VA?
Do you have a local office of VA? They will help a lot.
I have found that the Navy Federal Credit Union is a good source; you don't have to have been in the Navy, but I would like you better for it.
Be prepared for a FUNDING FEE, about 2 1/2%; not applied if you have a Disability, can be folded into the loan. We didn't have this years ago; but, we do now.
You will pay a little higher Rate than FHA, but with No Down.
Good luck and may God bless