How to Create a New Pen Name for Your Books

I'm thinking about doing some nonfiction under jf pen and also I write across many sub genres so it is interesting. What would change my mind is if amazon with the kindle unlimited program because my pen names all in ku  that's exclusive Whereas I'm wide with a lot of stuff under my regular name but I usually have the most recent couple series that I launched under my name in ku. If they like right now the way they have it is if something's co-authored like if I put Lindsay Baroque and Ruby Lion's Drake that would be a different entity as far as counting page reads and getting bonuses and things.