Welcome.
So the old standard from many days ago was Norton 1, 4, 8K. With that you can get great shaving edges. Once you learn that progression, you can branch out and chase down many rabbits holes. Basically once your foundation skills are in place, it time to experiment. I learned on all top quality NOS blades. They are not as plentiful as they once were. Remember you are trying to learn to hone. Cheap junk from China and Pakistan is going to teach you how to repair messed up grinds, now how to hone. Also there are many factors in shaving and the edge is one of them. You also need to learn how to strop without messing up the edge. Enjoy the journey. Having a tool background should provide you with both a good background and some bad habits