SO many Reimu...i dont know which one to pick

Everything except TH10 Reimu. She will eat your brains.

...but where is Zombie Reimu?

Actually, Reimu's PC-9801 appearances vary almost as much as the Windows' games.
This is Th01, 02 and 03 Reimu; 04 has more detail on the clothes, and in 05 she has a polka dotted hair ribbon/bow.

Th01 also had a red vest.