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Sounds great - if you have the names of some of those youtubers with a low-cost high-quality setup, that would be awesome! ;)

Shameless self plug but I just helped set up this stream: https://www.instagram.com/p/CQRHhSGD_Py/

Visual Synthesizer is what's used to get some of the visual to react to the drum set input via MIDI. Surprisingly easy to setup with a DAW like Ableton: https://www.imaginando.pt/products/vs-visual-synthesizer

I'm happy to answer any questions in the meantime until I write up a blog post about it all.