What pillows do you use?

I've tried Mediflow's water pillow, Pillowise Red, Layla Sleep foam blend, Saatva Latex, Purple Harmony -- none have really helped my situation.

While I am actively seeking out support from docs (currently looking for an in-lab PSG), I wanna see if I've really exhausted better pillow options.

BTW, I've always enjoyed more firmer mattresses. I've tried memory foam toppers and sleeping on the ground - but neither was sustainable.