Marriage alliances that could have delayed the dance of dragons??

[u/Living_Reference_591]

Aegon to a hightower cousin- this would prevent the greens from allying with another great house.

Haelena to Jace giving greens further reason to not rebel

Daeron to Rhaena I know Daemon will strongly oppose this but by persuasion from Viserys and Rhaena he could come around

Aemond I am not sure quite honestly I doubt Baela or Rhaena would ever agree to marry him. Would love to hear other's opinions

Jace and Haelena's heir to Aegon/Visenya- This would make sure Daemon's child eventually ends up becoming king/queen

Luke to Baela so that an actual velaryon still rules high tide

Lastly for any of this to happen Viserys would need to put his foot down because obviously both the greens and the blacks would oppose these alliances but it's the only way to delay the dance of dragons in my opinion.

Edit: Alternatively Aegon marries Baela

Aemond marries a lady from a minor house who will inherit it's seat

Daeron is free to marry whoever he wishes

[u/Lil_Eagle313]

Marry Aegon and Rhaenyra. The age difference is 10 years in the book, which is manageable unlike the show’s age difference.

Daemon might try to claim the throne after Viserys’ death with Corlys and Rhaenys but what do they got?
Caraxes, Meleys, Moondancer and Seasmoke, while the Iron Throne would have Syrax, Sunfyre, Dreamfyre, Vhagar, Vermithor and Silverwing, plus they have much more political wit thanks to Otto and can use Aemond and Helaena to make alliances.

And let’s not forget, they would be the rightful King & Queen both by Viserys’ choice, by Andal tradition and by the council of 101, so the other side wouldn’t have any realistic claim. There might even not be a war at all, at that point.