I'm curious, what other pieces of media you read/listened to/watched/played recently remind you of the Dazzlings or inspire new ideas for them?
Mine is an obvious one. Hades 2.
It's a game which has a trio of sirens as side-antagonists, though only one of them (Scylla) gets the bulk of the spotlight. A large portion of the game's soundtrack is dedicated to different tracks for their level and boss fight. The level music is what you'd expect from the sirens of myth, but the boss tracks lean into their rock/metal band reimagining.
https://www.youtube.com/watch?v=P4S7EaXozXw
https://www.youtube.com/watch?v=cQFEcBIf8z0
The way Scylla is portrayed makes me think of an alt-universe where Sonata gets to be the leader of the gang, and she grows more viscous over time whilst maintaining her general demeanor.