131
Any sci-fi with aliens where humans are not the less advanced race?
(lemmings.world)
Book reader community.
Speaker For the Dead is one of my favorite books of all time, which is exactly this concept.
I highly recommend reading Ender's Game first, which is also an easy read.
The author won two Hugo awards for two books in a row (I think the first ever), but only wrote Ender's Game to flesh out the backstory for Speaker for the Dead.
Both excellent books with the latter particularly so.
Yep, that was the book I had in mind for such a sub-genre (I mention it in the original post).