Anyone have any suggestions on mangas featuring a male lead that is either a businessman, office worker or just very serious, professional, possibly straight forward or even dull getting together with a female lead that is like a punk, a goth, or a free spirited type of character?

Thanks a head of time.

I couldn't find exactly what you're looking for but these are close.
Puzzle (MORIE Satoshi)
Ore-sama Teacher
Sekine-kun no Koi

Looking for something different? Try one of these:

Otoyomegatari
Dungeon Meshi