Hi! Here is a not so exciting but maybe useful tutorial for editors looking to sync tons of clips whose videographer had the foresight to use timecode sync. If you're used to audio sync this method is a whole new world of convenient and is absolutely the right route if you're working on a documentary.
EDIT: An alternate solution for incorporating slowmo 24p footage is to interpret it as their original framerate (in my case 120fps) before syncing. If the camera recorded proper timecode this should result in clips that appear at the right time and don't overwrite any other clips. You should label them differently so you know you can hypothetically slow them down.
Here's the tutorial I used to learn most of this
https://www.youtube.com/watch?v=yaYDHyMdNJk
And the tentacle software for converting timecode embedded in audio to timecode embedded in metadata
https://tentaclesync.zendesk.com/hc/en-us/articles/115003871829-Tentacle-Timecode-Tool-Windows