Well, i couldn't add the new methods because the are for ESRGAN not for Real-ESRGAN. Even if there is few of them, they don't work with converter. I will look closer for ESRGAN engine and if it works with non-nvidia cards i will try to implement
i made a mega link with some converted esrgan models, if you need that or something, here https://mega.nz/folder/CQggyLaB#Zz57uPUItv49njiyjmEkBw