Touhou characters:

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

Touhou pairings:

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

I have more favorite characters from other media, but I tend to keep it to private accounts or reblogs on tumblr.