I would love to find some fantasy or alt-history lines.
Arranged marriages different species (elf/human as an example. Would love a Warcraft style Orc, love the look of them. But not Warcraft setting) war prize/warlord (would love to turn it on its head and the female be the warlord and a prince be the prize) father gambles away everything including their child's marriage contract. (slash or het would prefer to play the poor son or daughter)