Yaarel
🇮🇱 🇺🇦 He-Mage
Also, not every class needs to be classless.If you're going to make a classless, feat-based 5e, it's important to remember that you don't have to make it so every 5e class is exactly replicable within the system. If certain class features don't work, just change them or drop them.
It's better to build your system with its own coherent logic.
It is possible to design a class that chooses all its features from feats. Meanwhile, Wizard, Fighter, etcetera continue to work as they do now.