Ability to "Emit,"/"Sawn," rigid and soft bodies

Creating large simulations like 1000 marbles is almost impossible in Blender's current state. There used to be addons to help with this, but it seems that they stopped being updated before 2.8 and no longer work.

Particles are great for a lot of simple applications, but they don't currently detect collision with other particles, rotate with friction, or support convex hull collision, leading to them looking like they are floating.

I would love if there was an ability to setup something similar to a particle emitter that emits rigid and soft bodies which are then simulated. It would then be possible to tweak the settings in one convenient place, and just rebake the animation.