Title: The Professor
Author: Datura_Snape
Fandom: Harry Potter
Characters: Snape, Dumbledore, McGonagall
Warning: PG-13, suicidal, mention of het, character death (Tobias, Eileen, Rosier), Post-war
Length: Novel
Status: Ongoing
Snape's daily struggle with his life after Voldemort's fall. Back at Hogwarts, he is caught up between the students' dissatisfaction, Dumbledore's demands, lawsuits, grief and responsibility.
At AO3
This actually is part of a series, though I only am interested in "The Professor", not in the prequel. Snape's struggle after the war is often let out of fanfictions as Rowling revealed essential details quite late and even then it's up to a lot of speculation. This author managed to make his suffering quite real. While it sometimes seems like he's drowning in the issues around him, the writer succeeds to get him further. He changes, gets back to the surface. Step by step, Snape's turning into whom we know: canon!Snape. The development is very interesting to observe.