Depressive / suicidal black metal

Peste Noire if we are counting them.
Pensees Noctournes (first two albums) have a classical edge to them
Weakling
Leviathan

Happy Days (because I snicker when I read their name)


Not sure what you know so ill mention Xasthur. I don't like them but they're a big name in the genre.
 
Silencer is good for a laugh too if you don't mind awful vocals. Inb4 I got used to them and love them. No you don't. :)
 
Austere, Shining, Dodsferd, Krohm, Trist, Gris, Make A Change...Kill Yourself, Forgotten Tomb, Nyktalgia, Lifelover, Hypothermia, ColdWorld, Drowning The Light, Life is Pain, Wedard, Totalselfhatred, Bethlehem. PM me for more recs.