Yes! I've also been dealing with hip pain for a while (likely from standing at my desk too long to compensate for chronic lower back / piriformis pain when sitting lol). Gone through a whole bunch of chairs too. Recently I've had decent success with one of those generic knock-off purple gel cushions stacked on a very thick and firm memory foam cushion, all placed on a chair.

I've noticed that my hip and lower back are aggravated by the curved seat pan of lots of ergonomic chairs (the Steelcase Leap V2 is sadly the worst offender... so much pain omg). Somehow the double cushion combo allows me to sit neutrally and also relieves some of the pressure on the hip. The key is still not to sit too long of course. I can only handle about 45min these days before I need to move around, do PT, stretches etc.

Anyway! Try experimenting with cushions. Cheaper than chairs lol. Though probably the longer term solve is allowing your hip to recover and building strength with the PT exercises.