I use a Tommy Bahama beach chair for this, and I love it. I find it comfortable, reasonably adjustable. Quality is good value for the price but not incredible.

I use a Tommy Bahama beach chair for this, and I love it. I find it comfortable, reasonably adjustable. Quality is good value for the price but not incredible. Size is not too small, but it has a storage bag + cool bag on the back so it can be used as a backpack (easily fits a laptop + accessories). Some come with little collapsible sun shades. You can find it online easily (https://www.tommybahama.com/en/c/home-view_all_beach_gear https://www.tommybahama.com/en/c/home-view_all_beach_gear), but again this is a cheap option, don't expect miracles!