• Eternity, but clicking in an Notification E-Mail on the Lemmy Inbox link, does not open Eternity on the Inbox.
• Voyager is also fine, but i has strange look on Android, looks more like made for Apple.
• Jerboa is nice to, but lacks options to change the fonts
• Sync for Lemmy is nice, but its closed source and has ads (can be removed when you pay enough 20,99€)
• Some other apps in the Playstore, but most of them are not worth to use them
• Thunder seems to be nice, but I really miss 'Mark as read on scroll' feature, which is very important for me
• there is 'Commit for Lemmy' on the play store, most features I want are there but a) its not available on F-Droid and b) crash from time to time
• 'Boost for Lemmy' looks really nice. I couldn't find a setting for 'Mark as read on scroll'. Maybe it's enabled by default. If that's true, I would keep this app. There is a option to remove ads for 3.59€ which is a fine for me. But I have not seen any ad as of now. Be aware that there are 6 Trackers in this app, but since I use PiHole, it's not really important for me.

Currently im using mostly Eternity and hope that some bugs get sorted out sooner or later. But Boost would be good next candidate, if 'Mark as read on scroll' is supported. Arch f not, the next best alternative is Jerboa.