Best way to reduce cellulite on thighs?

I'm not a thin girl, but I'm fine with my belly and stuff like that. I just hate my thighs so much. I'm pretty happy with my body, except my thighs. I like how thick and soft they are, I just want to get rid of the look of cellulite bc I really wanna be able to wear shorts and look cute + confident (I live in Texas and wearing jeans in the summer SUCKS). Besides running or biking, what can I do about it? (I already plan on doing those things.)

I think that I've in general just gotten fatter since being on birth control + being in a relationship that lasted for two years.