For this animation I used 3 different particle systems and one that uses them as target for a keyed particle system.
The first particle system has no physics at all and sits on a cube. The second particle system uses fluid particles. And the third one uses newton particles on an ico-sphere that get influenced by a forcefield.
you can download the blend file here
blender 2.80 experiment 1 - particles
AN Experiment 2018 Test 8 - dancing cubes
AN Experiment 2018 Test 6 - dont overlap