I would like some more "Monster killing" quests, not necessary a guild, but in every town and settlement there would be an Elder (or someone who would give you the quests) who will have a few quests: "Go kill -inset monster here- in our -inset place nearby here- at -inset time (AKA midnight, Noon etc.), bring me proof and you will be rewarded with -inset gold amount here-."
Then you when you complete the quests, you could come back in a week or two and they will have them again with a different monster and place.
Also, repeatable quests in guilds:
Fighters guild: Kill XX -inset animal/monster here-. Protect NPC traveling from A to B.
Mages Guild: Remove curse from NPC. Gather ingredient for guild stock. Research Ruin for Knowledge.
Thieves Guild: Steal item from NPC. Steal item from NPC, place at other NPC.
Dark Brotherhood: Kill NPC. Threaten high placed (count, guard captain etc.) NPC.