Fetch Quest has these relationships to other tropes:

parents kids shares a parent with:
Plot Coupon
Gotta Catch Them All
Twenty Bear Asses
parent child
Plot CouponPlot Coupon That Does Something
''Golden Snitch
''Star Shaped Coupon
SidequestSidequest Sidestory
''That One Sidequest
''Bonus Dungeon
''Bonus Boss
''Escort Mission
''Collection Sidequest
''Cartography Sidequest
''Romance Sidequest
''Gladiator Subquest
''Irrelevant Sidequest
''Mass Monster Slaughter Sidequest
''Twenty Bear Asses
''Loads And Loads Of Sidequests
You'll need to Get Known if you want to add or modify these relationships.