Franchise Resales (non-QSR)

Does anyone have experience acquiring a franchise resale in non-QSR sectors (e.g. home services, auto, pet care, etc.)? Is it best to target these opportunities by going directly to the franchisor and expressing interest in acquiring from owners potentially looking to exit? Or are there any good brokers / resources that specifically focus on these types of transactions?

Any insights on franchise resales in general would be super helpful!