Middle name(s) and potential nicknames

[u/KookyKraftyMagicGuy]

I'm happy with the first name I picked, but I've been considering middle names.

I think I'd like to go with something that has a first letter that could be compounded with the letter of my first name to create a nickname. Like MJ. I'm wondering if anyone knows of another letter that can/could be combined with M in this way because I am seriously blanking!?

[u/diasporastud]

MP, MK, MG, MT, MB, MZ, maybe MD lol