I don’t know anything about music libraries but here’s a thought experiment - what happens if you take all the convenient 4-8 bar midi patterns out of e.g. an old roland mc-505, or a yamaha RM1x , then use those patterns to fire say a bunch of samples in one of the many drum libraries available (say Battery) - stick a selection of ‘atmospheres’ on em, etc

I mean, what constitutes an original ‘beat’ here?

I can think of so many ways to semi automate this without an ounce of creativity…