They have this that looks pretty neat. I guess it doesn’t have a cover but you could probably cover it with cardboard or maybe a piece of plywood or something?

Bits and Pieces - Square Spinning Lazy Susan Puzzle Table - Rotating Jigsaw Puzzle Table - Puzzle Accessories - Puzzle Table - Fits 1500 Piece Puzzle - 34" x 34" https://www.amazon.com/dp/B00O7WRR1M/ref=cm_sw_r_awdo_navT_a_EXGWYXZVT09KG4HSSR1F

This is the easel

Bits and Pieces - 1500 Piece Size Puzzle-Expert Table Top Easel - Adjustable Plateau - Puzzle Accessories - Puzzle Table - 35¼" X 26¼" X 2" https://smile.amazon.com/dp/B074P5VFBF/ref=cm_sw_r_cp_api_glt_i_D3CF2KS3YAJNVY9M628X