As someone who has no interest in generating business or networking myself,
just an an informed citizen, it is always wise to find a lender you can trust, first.
You will either qualify or you won't, it doesn't make much sense to look at homes first.
Your best course is to get pre qualified, find out what you can and cannot afford and then begin looking/searching for homes. If you are already pre qualified, you can put an offer in as soon as you like something, instead of in reverse. (which can be a problem in competitive markets)