I'm afraid you're getting a little carried away with your new toys and buying your Noise Marines every upgrade in the book! Lets not make them into defilers, haha
Typically Blastmasters are best for
MeQ lists, as you can take one with a squad of only 5, and they usually target different targets than sonic blasters.
Make sure you only take the icon on really big squads, 15+, or of size 10 if you really have lots of leftover pts.
I'd only throw doomsirens on squads with extra
CCWs that you are planning on making assault Noise Marines.