Good luck, but remember that often fit > location.
Get a sense from how motivated the residents are and how diverse their interests are to guage training quality. If you have, in a say an 8 to 10 person class: 1 -2 doing hospitalist, 1 doing obsetrics in a rural area, 1-2 Urgent care/or rural ED (whether FPs in ED is a good idea is another topic), 5 outpatient, 1 international med, 1- 2 under served med, etc, maybe a sports med person, etc. A one line way is “do the residents seem to be making interesting/varied use of their training?”
Good luck
If a place seems cool online, do a rotation there. A good motivated rotation > > board scores....