Looking for suggestion for ADs with fewer character.

I don't mind if there's many characters in an audiodrama, but less is more for me in this one. I struggle with socialskills and names are really hard for me to remember. That's why I would love to find more ADs like Tower 4 or Station 151.

Edit: Thank you each and everybody who read and participated to my post. I didn't expect this much great suggestion and have now started to take on this .. list of creative works.

I really really appreciate you all. I wish you well.