Most of the low shank, japanse machines take the same attachments as fit Singer low shank machines - with the possible exception of some of the Kenmores, because Sears like to be different. They would specifically ask mfg to make something slightly different just so Sears could say thiers was unique. Made it so you had to buy parts from Sears too . . .
Anyway, it is very likely that any attachment made to fit a Singer short shank (straight) will work. Singer also made SLANT shank machines, so the attachments are straight and slant. Other companies made High shank machines.
I've got a lot of attachments for all sorts of machines, including a lot of buttonholers and mongrammers.