I try to talk about it tons! I LOVE Fujifilm. But I think it doesn't get the love it deserves because it's still a Super35mm roughly sized sensor (vs. full frame), and full frame is better in low light. I LOVE the XH-1, can't wait to test the XT3, and am psyched for the future, but Fuji seems to be betting on medium format as their next move, skipping over full frame. It's a bold bet, but it means in 2018 they aren't getting the press of canon/nikon. who are 3 years behind sony :)

I would also recommend the bruce block book "Visual Story" . It's amazing. I'm interested in your creative/business crossover project, I'm working on a book right now about creative entrepreneurship, hit me up if you like to talk more.

Bummed to see EVA1 isn't on your list of options!
https://nofilmschool.com/2018/01/filmmaker-review-panasonic-eva1

Panasonic must not be marketing heavily enough: love that camera, and you can keep using your Canon EF lenses from your C100.

Pair that with an Atomos Shogun Inferno (was shooting with it yesterday) you get ProRes RAW.

Big fan.
Ch:H

The new Blackmagic Pocket is probably a good fit for your needs.

With the Shogun, you get SDI, which you won't need with the GH5. The shogun might be more flexible as your career goes and you work with different platforms. However, the Ninja is great and if you will mostly work with the Gh5 for the next few years, go for the Ninja. They just came out with a new 5" Ninja which is worth considering.

Affinity?