Euphoria is a major hit that's a teen drama. So what does that tell you, that today's teens go more a edgy route over into wholesome romance. They are too cool to get off on these teen drama mega romances.

Riverdale is probably one of the closest. The mystery element gives it a subgenre that shows like Dawsons or One Tree Hill don't, but overall it goes all in on its big relationships, and is an old school stacking in terms of cast attractiveness.

I think in general romance has gotten a little less popular, you can see it in less love songs. Listen to Stay by Lisa Loeb and Stay by Kid Lorai feat Bieber and you can see how the sentimentality has been stripped out of pop music in 25 years. There is also obviously less romcoms.

Netflix owns the teen demo these days so it's difficult for one of the (imo) higher quality networks to really hit one a successful teen show. The more successful strategy for the other streams is to hit Netflix where they're weakest which is middle aged males. You're better off trying to make a Jack Ryan than a teen drama because right now teens have no interest in giving up their loyalty to Netflix.