As a fellow big lad, most frames are fine for you … it’s just the shock as folk have pointed out above.
Some frames have a lower leverage ratio, which really helps with air shocks but that doesn’t seem to be something lots of them talk about in their blurb. I could be wrong but, I think that the longer your shock is for the amount of travel the frame has, the lower the leverage ratio, the better performance you’re going to have as a big lad.
I’ve got one bike with a Cane Creek dBair (not inline) that more than happily caters for my weight and one with a Fox DPX2 that frankly struggles a wee bit (although the DP that was on it previously was fine). I’ve never had a coil shock as all the faff of getting the right spring just seemed to be an expensive route to go down. Also, like most big folk, I do have my Belinda Carlisle moments when I drop a bit of weight (different shock pressure with an air shock) and then put it back on again. Air shocks works better for me that way.
I would definitely recommend the Cane Creek shock though. It is super good.