I think these guys do a true 100% VG, haven't tried it though
Cinnamon Buns 100%VG | The Steam Geek
ITC Vapes has a mountain dew dragonfruit
juice that's been my secondary flavor I carry every day for like the past 6 months. At first I didn't like the dragonfruit undertone, but now I don't even taste it. When I've got a fresh coil, people compliment the juice all the time when they get a hit of it. It's got a nice throat kick to it as well.
ITC has a MAX VG. Not sure if it's 100%, but probably as much as possible, and their VG is pretty thick too compared to other places.
The only cinnamon roll flavor I've tried was from MBV,and it was actually pretty good (the first time, not the second). I imagine if MBV can make a decent cinnamon roll, it's likely a very easy flavor to make from anyone.