The real workhorse here at Crazy Wall Labs is my Logitech K760 solar Bluetooth wireless keyboard. It has been on my desk since at least 2012, and has been connected to as many as 5 (maybe 6) Macs.
The 760 is solar AND Bluetooth and works without a dongle in one of your ports. It also supports up to 3 devices, and I used to connect it to my iPad before I got one with a keyboard case. The thing is just a beast and by far my favorite of all my Mac peripherals (can’t believe I spelled that right on the first take) I have.