Assuming you have some previous CFI experience, you might consider freelance work. You can get a higher hourly rate, and many students prefer to see a few grey hairs or wrinkles. If you have (or acquire) specialty GA skills like MEI, glass, GPS, Cirrus, etc. You can charge more than a basic CFI-172.
Freelancers have to find their own students, but many school CFI's have to do the same.