1. I would talk to Souj, who wrote a book and published it.
2. Be aware that you can offer beta reading to people, but
some wont read
some won't respond
some won't respond with anything useful
some will respond with something completely wrong
I beta read his book, gave him this much response a month and a half later

he asked some follow up questions, and I anxiety flaked out and never responded further. (Sorry Souj)
And I know a few other published authors, and for beta reads that outcome falls into [Success: Moderate]