I am the VP of Customer Success at Tiny the makers of TinyMCE - one of the most feature rich wysiwyg rich text editors available.

Tiny also provides a set of commercial add-ons for TinyMCE: https://www.tiny.cloud/pricing/

My team handles support for Tiny's commercial customers - if you purchase a commercial license of TinyMCE or any of our premium plugins my team makes sure your implementation is a success.