I was recently completing a site for a client which required users to be able to submit rich text but Webflow (weirdly) doesn't natively support this. I first tried Quill.JS but was unhappy with the result but eventually found TinyMCE - what an incredible tool! The main reason for needing a RTE was to utilise bold, italic and underlined as well as lists (no need for headings). I've set up the API to my needs but the documentation is great and easy to understand. Want to know the best part? I can send the data to Airtable using Zapier/Integromat/Parabola and then push it back into a Webflow CMS RTE!