I think we should avoid ship names that end with -ah just because there's both Leah and Noah. So I think I'm Team Lexant or Lero or Lerox.
What on earth do you do with Noah though? Noltz? I'm not normally for violence in relationships, but there is a delicate balance where they can be played for over-the-top laughs. I guess maybe looking at my reading history, I hate it from tsunderes and from males, but if it's done comedically from a girl that has a legitimate reason to be angry I'm OK? I love Akane from Ramza, but I hated The Student Council President Is A Maid. Not sure how I give Lina from Slayers a pass, so maybe I'm just inconsistent or a sucker for 90s ridiculousness. :)