How to make/get regex pattern from deobfuscated il2cpp metadata?

[ZeetherPop228]

So i've got an slightly older but deobfuscated il2cpp metadata for a mobile game and i need to get at least majority of the beebyte obfuscation removed from. The thing is that i have no idea how to get the beebyte regex so I need some help/guidance on how to make it myself if possible. I don't mind there being some obfuscated variables in case if it doesn't have all. It has both x86 and armeabi-v7a il2cpp libs. Cheers!