I recently bought my first mechanical keyboard, after having used my razer for 8 years, and i was looking into different keycaps, but i ended up having a hard time finding a good keycap set that is of good quality, and that i also liked in terms of colors, and has a super key or something like that. The keycaps that i ended up settling on didn't have a super key, so i just ended up putting the windows menu key on the super key, so that it atleast looks a bit more generic than the actual windows key. It's too bad they're hard to find, but i guess it makes sense since there is probably very little demand for it. Another idea is to maybe put a sticker on it or something.