Unpopular/Very popular opinion
I want Lukanette to happen.
I love Luka in the show - he's such a laid back, cool dude. I don't want Marinette fighting over Adrien with Kagami and Chloe - I want her to be going on dates in the park with Luka and his acoustic guitar. I want him to write songs about her, I want her to design more for his band. I want them to be a real power couple.
At the same time, I want Adrigami to happen. I genuinely like Kagami, because she's just such a strong female character, but I don't think she's a good match from Adrien. They'd be a good couple, but not as good as Marinette and Luka.
Then I want them to grow up. I want them to get to seventeen and then break up, e.g Luka wants to go on a trip around the world so he and Marinette break up because they don't think a long distance relationship would be a good idea. Marinette is devastated - but Adrien isn't.
Because his breakup with Kagami would be a little more harsh, he might feel better for breaking up with her. She seems quite controlling, rather than the passive ways of Lukanette.
This would let Adrien see Marinette as a friend. He'd no longer be obsessed with Ladybug after his relationship with no-nonsense Kagami, so there'd be no distractions. It would be as if there were no miraculouses in the first place.
And then we go into the land of Adrinette, with both of our children mature and with experiences in a relationship.
(I'm writing to this at 2 in the morning so it won't make any sort of sense)