This is one of the few WotC publications that I do not have yet. Maybe I'll pick this up on D&D Beyond so I can read through it. Thanks!
Can you give us an idea of what sort of length you're looking for? Is Phandelver about the right size?
I rather like https://media.wizards.com/2015/downloads/DDEX31_HarriedHillsfar.pdf in fact any AL season opener by Shawn Merwin is really flexible, and really easy to run.
I also got some good play out of the free part from Princes of the Apocalypse adventure. You can play part for free and them buy the big book if you get into it.