Seems like you're fishing around for inspiration. Honestly, if you want a recommendation for what you should write, I highly recommend writing... Incest.
Yeah, yeah... but here's the thing. If you're new to writing and want to master the craft, incest is a very, very good place to learn.
ALL good writing is mostly about good characters, deep psychological hooks and drama welded together into a story. If you can't write good characters, then you should not bother writing at all. But if you can imagine the quirky girl next door, or the stern principal, or that punk rock trouble maker, or that nerdy straight A student, then you can probably start working on some characters.
After characters, what you need are the psychological hooks, drama and story progression. Incest is the perfect training ground for learning to write that kind of matierial. Even the VERY worst writers understand what is at stake when you try to fuck your sister. The conflict, psychology, moral dilemmas are crystal clear. The "Progression" involved is simple to imagine. The conflicts and story opportunities are overflowing from the subject matter.
~ My sister looks so sweet napping in front of the TV. Breathing softly as she sleeps. She is so beautiful. The way her... Oh god! Am I allowed to look at her this way? 'snip'
~"All set honey. " Freddy's mother said gently caressing his face.
"Thank you mom." Freddy said poking tenderly at the bandage on his knee.
No one knows how to take care of me like Mommy does. Freddy thought to himself, as his mother bends over to put the bandages away. Her bottom points directly at his face.
Freddy couldn't take his eyes off her sumptuous curves. Freddy felt his erection growing. Why does this keep happening to me? He thought desperately grabbing a rag from the counter, throwing it onto his lap before his mother could see his swollen member. Freddy pressed down on the rag, trying to seem natural in front of his mother.
"Is everything alright, honey?" 'snip'
~How did it come to this? Harry wondered to himself as he looks down at his daughter Bella, squirming and giggling as she called his name. "Oh Daddy." She cried as he plunged his cock in and out of her. "Daddy that's amazing!."
Fuck it! Harry thought, I don't care what the neighbors think any more. 'snip'
These are silly examples. But they show the escalating stakes in an incest story. The psychological hooks should be obvious. And the "Situations" are fraught with potential crisis's, (moral or practical). Breaking Taboo. Shame. Power imbalance in the relationship. Getting caught. Admitting your deepest desires. Fearing rejection. How will the protagonist resolve such a crisis within the context of a family? Or will it tear his family apart?
Anyway... if you're looking for something to get juices flowing, maybe that will help.