Honestly, the mention node is amazing. It adds support for `@mentions`, for example to ping users, *and* provides full control over the rendering.
Literally everything can be customized. You can pass a custom component for the rendering. All examples use `.filter()` to search through items, but feel free to send async queries to an API or add a more advanced library like [fuse.js](https://fusejs.io/) to your project.
To place the popups correctly, we’re using [tippy.js](https://atomiks.github.io/tippyjs/) in all our examples. You are free to bring your own library, but if you’re fine with it, just install what we use: