What's the robot on the left? An Aputure Amaran MC RGB Light on a wee baby tripod.
What's the colorful thing on the right I keep seeing? An X-Rite ColorChecker. When you're messing with DSLR color profiles & pulling in an editor, use this to get the color correction just right.
If I pull an intern in to edit, where should I have them start? Keep using the same tools you're already using, Loom & Descript. Both tools allow you to add team members, and they can easily hop in to contribute.
How much does it cost to hire a video editor? It's totally across the board. You can hire offshore editors for less than $10 an hour, and agencies for several hundred dollars an hour. Start small!