There is not a comparable Lemmy enhancement suite AFAIK, though some of the RES features exist in different Lemmy mobile apps and web frontends. For example, the Thunder and Summit mobile apps support user tags.

If you want something browser-based, poke around in the various alternative frontends and see if they fit what you are looking for.

a.lemmy.world - Alexandrite UI
photon.lemmy.world - Photon UI
m.lemmy.world - Voyager mobile UI
old.lemmy.world - A familiar UI

There is also PieFed, which is a Lemmy-compatible platform and also offers some different features in its frontend.