Personally I would say start with Arch and if you like it use endeavorOS. Endeavor is just easy install for arch(and the only one I’ve tried that actually achieved it well) so if you already know the inner workings it saves a lot of tedious install work and has some nice QOL defaults already set like yay colorized
Have you taken a look at the pinetab? Its probably the most Dev oriented Linux tablet. Librem-11 might be the only Linux native x86 tabket but if you don’t mind flashing a new OS a refurbished/used microsoft surface would be cheap and powerful. (Need the linux-surface kernal for all functionality)