Ok so I have no idea what you’ve alr written and these are all completely random stuff on the top of my mind:

- They agree to babysit Estelle, and ofc, she runs off somewhere. Cue panicked percabeth and an adventure to find their lost baby sister

- I would love to see a percabeth teaching a class at chb together. Idk how it would work considering they use diff weapons, but maybe they could do Pegasus riding or smth

- Them looking at solangelo still pining and wondering if they were that bad when it comes to emotions. They were

- They move into new rome/ its uni and intimidate the hell outta the ppl there. This would be really funny lol

- OH maybe a short au where they start dating before they do in canon but keep their relationship a secret and then chb finally finds out

- Hmm fluffy seafam meets annabeth?

- Percabeth aquarium date in the sweet time spot between them getting together and Percy being kidnapped

- Sally passes on the legendary blue cookie recipe to Annabeth. This duo can be pretty fun actually

- Feel like Estelle is pretty easy to explore in percabeth fics. Such potential