If it's still helpful- I've been using one of these, it just fits but it's nice and snug in there I guess:
https://shop.warwick.de/en/cases-bags/guitar-bags/e-guitar-bags/17367/rockbag-professional-artificial-leather-line-electric-guitar-gig-bag?c=3039
I've had that bag for probably 10 years, only been using it with the POD Go in it for the last 2 or so years, and I've just noticed one of the strap loops has torn a bit and hence I'm searching for a different option and ended up here... Looks like it's exactly the same but they don't have the pocket dimensions on the listing.
Hoping someone else out there might have a different bag they've got experience with but otherwise I might just end up replacing with the same one.