- Chromecast Ultra
- Fire TV Cube
- Framemeister
- NES Classic Edition
- PlayStation 3
- PlayStation TV
- SNES Classic Edition
- Steam Link
- Super NT
- Switch
- Wii U
- Xbox One X
I'm not too different from your setup there.
My TV has 4 inputs, and I use one of those for a 5 input HDMI switch.
I ended up leaving an HDMI cable connected to the TV, but not connected to any device, that I can easily access to connect the lesser used machines. So in my case my NES mini, SNES mini, PS TV, Framemeister, N64, and Super NT stay unhooked most of the time, and I hook them up as needed. Three of those are pretty easy, as they use USB power, so I can just leave a single USB power supply ready for them.
For the Wii U and 360 I physically swap the HDMI cable between them. They're used infrequently enough that it's not much of a hassle. I'll probably put the 360 away soon anyway, as there's only a handful of my games that don't work on the X1 at this point.
Overall, I guess I don't have an easy solution for you. I just had to prioritize. Realistically there's no way you're using all those devices all the time, so you just have to work from there.
I would echo the suggestion to get a harmony remote though. One of those really helped simplify my life. I went from having like 6 remotes, to now just needed the Harmony one, and the PS3 one. The only thing that sucks is that the framemeister and my HDMI switch use the same signals.