We do not have a slide so we were limited to what could be used. We just removed the cushions and mounted a pair of gaming chairs to the plywood base of the dinette using pipe clamps. They work very well and we still have complete access below for storage.
We can sit in them for many hours at a time. We added a cushion of memory foam that we had but the stock chair works well enough. They work fine with the stock table.
Just replace the cushions when you sell the rv and the new owner has the option for recliners and/or a dinette bed.
We removed the armrest of one side, it just unscrews. Easier to get in/out.
Sold on Amazon $99.
Best Choice Products Multipurpose 360-Degree Swivel Gaming Floor Chair for TV, Reading, Playing w/Lumbar Support, Armrest Handles, Foldable Adjustable Backrest -
This link shows pics of the chairs we used.
Alfinus chair