I am looking for several ideas. Custom and Fandoms.

Lets start with fandoms:

Wrestling: John CenaxLita, OCxOC, OCxAj lee, John CenaxAj lee, OCxStephanie Mcmahon,
Angel: AngelxCordelia, AngelusxOC Angel/lusxFred (corruption story if Angelus is picked.)
The walking Dead(game) : LeexCarly, LeexOC, OCxOC, OCxClementime,
Dragonballz GokuxBulma, OCXOC
The Wolf Among us: BigbyxOC, BigbyxSnow, OCxBloody Mary,
Left 4 dead: ZoeyxOC, OCxOC
Star Wars: OCxOC, StarkillerxJuno Eclipse, ObiwanxOC, AnakinxOC, Old republic:RevanxBastila, RevanxOC, RevanxMission, ExilexMira, ExilexHandmaiden, ExilexOC,
South Park Stick of Truth: DouchebagxOC
Saints Row 4: BossxShaundi, BossxOC, or BossxBoss, like an alternate universe cross over.
Full-Metal Alchemist:OCxOC, EdwardxRose, EdwardxWinry
Harry Potter: HarryxHermione

Alright thats the end of fandoms for now.

Custom Ideas:

VampirexHuman
Supernatural wrestling thing or a fighting tournament particpants
VampirexNecromancer
 Band members
Monster Hunters
Predetermined Marriage
BossxSecretary
Married WomanxSingle Man
Best Friends
Rivals
Best friends sister
Princess and her personal guard

I have run out of ideas but if you have any ideas you want to suggest be my guest.