TomToc makes some of my favorite accessories for the Switch, just picked up a bag of theirs recently after seeing a detailed review by Bob Wulff, a gaming YouTuber.
I picked up the slightly bigger one they built for Steam Deck for a little extra space, but they've made one specifically for the Switch. The difference is around $12 for the extra space.
I also use their hard shell cases for pro controller storage and with the steam bag it looks like I've got more than enough space for the switch, 2 controllers, a case full of games, an external battery pack, and any additional adapters/cables.
I completely agree about the grip. Makes playing for longer much more comfortable.
I was wondering if anyone has a 3d model or anything that can clip on the front of the device (with the grip) to protect the sticks when this is in a bag. I ended up getting this bag so I didn't have to keep taking the grip off and on but I'm worried that the sticks are getting smushed when I put it in there.
Tomtoc Sling for Switch - currently $37 on amazon if you're in the US.