The Visustella team has really been going hard, not only bringing the YEP Library over to MZ, but making it better than ever before. Yea, it's not exactly easy on the wallet, but you really get what you pay for, the functionality of many plugins have been condensed to have fewer plugins in total but the features of those plugins have also been expanded. While MV may still have more overall plugins available right now, This is definitely the one stop shop for the majority of your RPG feature needs.

If you weren't a big user of Yanfly's plugins before, this all may not really interest you, however I do highly recommend at least grabbing the debugger plugin, That's a tool that will be of great use weather you make your game entirely vanilla, with Visustella's Plugins, or with plugins from the rest of the community.

Happy Game Making!