Good morning from a sunny Sweden!
We have been looking at this for a while and have compiled the below. Please note that as we're in the software business, that is where our focus has been.
I removed our company's' score, in case you're wondering

Then there is this one:
Link: https://www.retently.com/blog/good-net-promoter-score/

And lastly:

Link: https://customergauge.com/benchmarks/blog/consumer-nps-benchmarks

Hope this helps!
All the best
-Mattias

This is perfect and aligns with what I have been hearing, I just could not find anything to support it. Thank you for the insights and the light reading I have ahead of me today.