Here’s a fun one and something stupidly simple, really easy to use, small, affordable but way more useful than you might think. It’s the Low Fat VCF from AJH Synth, which is a 2HP non resonant (it’s supppppeeeer smooth) high pass filter.
I think my favourite thing is using it to pair with low pass filters and to make a variable width band pass filter. It’s also nice as a simple “clean up the mix” tool, as a pseudo spectral sidechain, multiband ducking style device or just for performance sweeping low end out of things.
It’s not a long video, but I think you’ll find more patch wise than you maybe expect from it so I hope you like it.
