Thanks Ronin for your answer !
To help the discussion, here's my current rack:
I started asking myself those question after thinking of getting a distortion module actually (because that's the only effect I really know about, but wavefolders and comb filters sound like something I would have to investigate further, thanks for the suggestion ! ). I was thinking about introducing one of the small distortions from Noise Engineering between the Black Wavetable and the reverb, and that (plus playing with the BIA in my rack) made me consider the fact that instead of 12HP for the VCO + 4HP for the distortion, I could maybe get a harsher sounding VCO from the Noise Engineering offering for just 10HP, if they're up to the task.
But again, I'm in no rush to switch out anything, for now I'm just thinking about it and considering some options while continuing to explore what I can do with what I have ;)
I definitely should also consider the possibility that, as suggested on MuffWiggler, I might need to make space for some sort of CV controllable mixer that would allow the type of patch you suggest with different signal paths. Signal paths are actually something I struggle with, even when looking at other people's racks, I am convinced that with Eurorack I can really build a signal path I could adapt to my needs on the fly, I just have a hard time figuring it out after years of using traditional synths.
Of course, I realize the 2hp Verb is limited but I had to make choices due to space and while something like the Erbe-Verb would without a doubt improve over what I have, I don't think I could make space for it. I also have to admit that working with reverbs was always something I also struggled to use, for example sequencing the reverb on my Octatrack is something I avoid doing lately as I always find the results worse than having it almost without any movement. Nevertheless, you're again right about suggesting to experiment with a filter or effects after the reverb as well. My 3 Sisters filter could definitely do the job, sounds like another thing I should try !
--- Voltage control all the things ---