Vortex Sound Research

I'd like to finally get started with modular after many hours of VCV rack, and it appears the (I can't believe I'm saying this) Behringer semi-mods are the best cheap way to get started.

However, there are a crap ton of them and I'd like your input on which one's best. I'm not a fan of the sound on the Neutron, but rest seem to sound pretty good. Which (cat, wasp, model d, k2, etc) one would you say is the best?