Maslina in Serbian
AccountMaker
Idk, quite a few (me included) made alt accounts for the time being, and we'll return when it becomes possible, especially if we really do migrate to piefed.
Seconding language transfer that someone mentioned, I found it to be hands down the best free resource for Greek.
Assimil courses are also some of the best materials out there, I highly highly recommend it if you can find a course for your target language.
As for apps, I use Clozemaster for drilling words (I use a premium account), but you can make your own anki decks for that purpose.
But nothing beats talking to native speakers, either using something like italki for actual lessons, or just finding random native speakers. I often forget words I repeated 1000 times during my studies, but words I learned by speaking to others somehow just get glued to my mind.
Runners: min/km
That would be so nice if we could move to Piefed.
It's jarringly obvious that they are just told what to say.
Reminds me of propaganda workers in Serbia that sometimes copy their messages along with additional instructions, so you'd see something like "LONG LIVE THE PRESIDENT but change it a bit so that it's not all the same" in the comments of news platforms.