Mattress for side-sleeping couple under $800?

I’ve been looking everywhere for a good mattress for side-sleepers that is under $800, but there are so many options with conflicting opinions which is making me a bit confused. I am 5’11 180lbs and my GF is 5’3 110lbs and we’re both side-sleepers. Does anyone have a good idea of which mattress would be good given our sleeping preferences and height/weight?