Hey there,
I think it's kind of sad that there isn't much talk on here about the super cool novel-verse that Trek has, let alone the fan fiction community!
Maybe this could be a starter thread for people recommending their favorite licensed or unlicensed works of Trek fiction, together with like a sentence to sell people on it! There's so many points of the Star Trek universe that only novels, comics or even fan fiction explore, and as someone who loves writing plausible fiction about underexplored areas of the universe (like ancient Bajoran history or the day-to-day of an Earth citizen) I wish more people would engage with it.
GO
I’ll start:
If you love the Department of Temporal Investigations and resolving all kinds of one-off time-related plot lines, check out the DTI novel series, starting with Watching The Clock!