MAME4ALL Dingoo currently emulates lots of arcade games supported by original MAME 0.37b5 plus some additional games from newer MAME versions. Some larger games currently do not work due to lack of system RAM.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi