SyndtSphere
Klevgrand may not be a household name, but the Stockholm-based manufacturing business has made a reputation for itself with a number of high-quality instruments with unusual interfaces. SyndtSphere is no different, and it's one of the more user-friendly software synthesizers available. The great fun here is the way you can morph between sounds utilizing a neat sphere-like device at the middle of the program, which has over 70 presets.
SyndtSphere offers an amazing selection of sounds hidden within, so more experienced producers needn't be turned off by the beginner-friendly atmosphere. The unusual morphing feature allows for some good sound design, although you could find yourself fiddling with it for a long time before getting anything done.
Detailed information:
Price: Free
Level: Intermediate
Link: https://klevgrand.com/products/syndtsphere