Have you tried Scribe editor? https://github.com/guardian/scribe https://github.com/guardian/scribe I've found it has better HTML output than medium-editor (th

Have you tried Scribe editor? https://github.com/guardian/scribe https://github.com/guardian/scribe I've found it has better HTML output than medium-editor (though still not perfect) and has a more flexible design, though it requires a bit more developer involvement to get up and running.