Will Savin released Grain Stream, a versatile grain delay plugin with a unique timeline editor to allow for fine control over a variety of grain parameters. It features 2 LFOs, a randomiser, and automatable offset sliders to modulate the grain parameters in real-time.

The granulator can play up to 100 grains simultaneously from 10 to 500ms in length, with 5 different grain window shapes, and grains can be fed back to create even denser granular textures.
Grain Stream is available as a 64-bit VST and VST3 for Windows and 64-bit VST, VST3 and AudioUnit for macOS.

More info here: Will Savin | Grain Stream