Here are some prompts that came to mind. Just pm me so we can go over some guidelines.
Prompt1:
Pairing: Korrassami
Idea: Asami finds out that mako is abusing Korra. She is furious, but before she counting mako to justice he escapes, now protecting Korra on Air temple island along with tenzin and the others she beings to act on her feelings for Korra who returns them.
Prompt2:
Pairing: Lin and Korra
Idea: something happens to Lin when Korra returns her bending causing her to age back to the age of 20. Though she is still Lin. Now 20 Lin has to learn to deal with unexpected feelings for the avatar who may just return them.