I’ll put in my vote for the classic Frontrunner Expander chair. Main advantage is it folds up into a tiny space (my critical requirement, with a pretty compact rig), about 17” square. Not expensive ($80, maybe $65 on sale), sturdy and long-lasting, though there is a Chinese Coleman knockoff I’ve seen in Target for even less.
Weight rating is a bit marginal though at 253 lbs
