Okay so I cant go into Makarth due to a annoying bug.
So I just wanna ask if I am missing any good quests within Makarth?
Especially Daedric quests

You'd be missing Molag Bal's quest, which is an interesting Daedric quest, and Namira's quest.

There's also the Forsworn quest (which I, personally, didn't enjoy), and a Dibella quest.

In addition, if you want to complete all the Thieves Guild quests, there's one that requires access to the city.

There is a daedric quest in markarth that starts at the abandoned house.

If you side with the stormcloaks in the civil war line, the bug with the guards fixes itself once that hold is taken over and the guardsmen are replaced. (in my game at least)

Okay thanks guys. I actually did the Molag Ball quest and the forsworn quest is the one thatcaused the bug. I alread ysided w the imperials so i cant do anything there.
At least it looks like Im not missing that much, as I already did the Thieves Guild
Thanks