Touhou characters:

• Shinmyoumaru, Seija, Zanmu, Jacketko, Akyuu, Reimu, Okina, Yuki

Touhou pairings:

• Shinmyoumaru/Seija, Kosuzu/Akyuu, Zanmu/Hisami, Jacketko/Labelko, Renko/Merry, Okina/Yukari, Reimu/Marisa, Yachie/Saki, Biten/Sanae, and a lot more (reverse OK but these are my preferences)

I have more favorite characters from other media too but almost always keep that to private on twitter or reblogs on tumblr