Oh, dates that can only happen in a fantasy world sound interesting- but it really depends on the fantasy world and what’s possible there.
Dragonback cruise through the skies? Only works if theres dragons like that, and they’re up for hire. It sounds pretty thrilling though!
A date where the characters get into a fight would be interesting- and would probably help develop their relationship if the fight comes organically out of their problems and is resolved in a beleivable way.
I personally like the idea of weird not very romantic dates, like going to a place and finding out it’s not very romantic or comfortable and having to do a desperate search for the bathrooms but overall having a good time anyway.
Another cool thing is like amazing experiences, like a breathtaking view that gets burned into the daters minds that they wouldn’t have seen normally, like a giant waterfall or the abandoned dwarven mines or whatever XD.
All I know about dates is what I’ve learned from anime and manga though. I find books about romance hard to read, so I’m no expert here. And I don’t date or dream about dating either. But it’s still an interesting plot thing to think about, especially if I want to write actual romance in the future.