Inline is a library I've been working on that allows you to render alongside text. It has a variety of built-in player facing features as well as an easy to use API for adding your own renderers and matchers. renderers of course do the rendering and matchers parse text before it's rendered, allowing players to use the renders in their own chat, signs, or anywhere else that text is rendered.
: https://github.com/SamsTheNerd/inline
: https://modrinth.com/mod/inline (pending approval)
The current release (it's up on github and the maven) has a few minor bugs still but the core of it is ready to go !