Check if there is a vet school near you.

Check if there is a not for profit vet near you.

I found a not for profit about 35 miles away. Not worth the trip in all cases, but for a non emergency, big expense item? Oh yeah. I've used him for spay / neuters and so on. Turns out, he used to be in DC and delivered Millie's puppies when she was the Clinton White House dog!

I found the not for profit one either from craigslist or from asking a feral cat rescue group, I can't remember which, now. But both are good sources for low cost vetting.