There really are quite a few apps due to the recent popularity, many are new and/or still in development. So pointing you towards an app that has that feature is tricky. Here is a list of what I’m aware on Android. I would suggest finding a few you like the look of, and then asking for such a feature?

Thunder for Lemmy: https://github.com/hjiangsu/thunder

Liftoff: https://github.com/liftoff-app/liftoff/

Jerboa: https://play.google.com/store/apps/details?id=com.jerboa

Summit: https://play.google.com/store/apps/details?id=com.idunnololz.summit

Connect for Lemmy: https://play.google.com/store/apps/details?id=com.kuroneko.lemmy_connect

Boost for Lemmy: https://play.google.com/store/apps/details?id=com.rubenmayayo.lemmy - (Upcoming)

Sync for Lemmy: https://syncapps.io/ - (Upcoming)

Slide for Lemmy: https://github.com/bqv/slide - (Upcoming)

Lemmy-fennec: https://github.com/nick-delirium/lemmy-fennec

Ares: https://github.com/lyptt/ares - (Upcoming)

Warami: https://github.com/mdpearce/warami - (Upcoming)

Lemmur: https://github.com/LemmurOrg/lemmur - (Not maintained, I think?)

Lemming: https://github.com/janniskilian/Lemming - (Upcoming)

Wefwef: https://wefwef.app - (Web App)