Thanks everyone for the great input. I am going to look a bit deeper into razor, Although i remember it leaning more towards “conventional” synth sounds, although brilliant sounding.
The Xaoc module looks crazy, demo seems promising as well, might take a while until its release though.
In the meantime i will try fiddling with pure data as well. I found a lot of good entry points for additive synthesis in pd but, like so often with pd, not a single fleshed out patch.