Pretty sure you got yourself a typical 10mm Gotoh-style tuner like pretty much every Ibanez, Jackson, ESP/LTD etc. that didn't come with locking tuners
The stock set of tuners #2MH1CG2L7B was used on a lot of 7 strings Ibbies. The holes must have a standard diameter for the kind of stuff usually used by Ibanez I am not sure, but if I were you I would first be interested by the set of locking tuners GOTOH SG381-07-MGT. It's the first thing that comes to my mind
most of the ibanez stuff has a little bit of play room in the actual diameter of the tuner holes meaning they fit most aftermarket tuners. These should fit if you don't mind them saying kiesel . (they sell individual tuners so you'd have to get the 6 string set and then one additional) https://www.kieselguitars.com/products/CLT6C