Royalty BL

Willow Love Story is probably the closest in themes to Rogue Prince:
https://www.mangago.zone/read-manga/willow_love_story/

https://www.mangago.zone/read-manga/kouguu_no_omega/

https://www.mangago.zone/read-manga/smyrna_capri/

King's Maker has some very serious topics. Please check all the trigger warnings before reading.
https://www.mangago.zone/read-manga/king_s_maker/

I'm also rereading this one at the moment. It's nobility not royalty, but I figured it's probably close enough to count. Beta x Alpha.

https://www.mangago.zone/read-manga/kakumei_no/

Other than Willow Love Story, I only remember Kouguu no Omega, the rest is nobility instead of royalty.

Im fine with nobility too, im not picking i just have readers block and incredibly bored. Please tell me!

*picky lol

https://www.mangago.zone/read-manga/barbarities/ - not omegaverse but u should def read if u haven't alr