If you’re looking for a Red State to find groups to work with- look at Texas. We were close to shifting purple in 2020. Organizers there are exhausted. Abortion and trans youth care in particular need help. We’re dropping doctors like flies.
Pointing again at my US Blue State Challenge. If you live in a "blue state", pick the red state you hate the most and the issue you care about the most and find a group in that state working on that issue and support them.