The full list is 9 tale quests.
I'm not sure if the 10th is technically part of this, so I included it at the end of the list, but it is needed for a seperate trophy anyway.
Jin's Tale1/9
The Tale of Lady MasakoHer recruitment story
Tales of Tsushima2/9
The Headman (Act 1)
3/9
The Husband (Act 1)
4/9
The Traitor (Act 1)
5/9
The Fool (Act 1)
6/9
The Family Man (Act 2)
7/9
The Thief (Act 2)
8/9
The Conspirator (Act 2)
Tales of Tsushima side questA Mother's Peace (Act 2)