I have been meaning to post a review for ages! If you like Heinlein, Illuminatus!, Laumer' Retief (intergalactic James Bond), you may love it. I did!

It's an unabashed celebration of masculinity, too. Avoid it if that squicks you.

I recommend Sanity because @Meaningness enjoyed it. 😉 https://amzn.to/3YgUf3z (affiliate link)