In my house, I have three Echos, a Roku, a couple of FireTVs, a couple desktops, a laptop, iPads, and iPhones.

When I want to use the "Connect to a Device" so I can use my iPhone to play music on my Living Room Echo, depending on what devices are powered on, I see this list:

• Living Room Echo
• Living Room Roku
• Bathroom Echo
• Garage Echo
• FireTV 1 Gen 2
• FireTV 2 Bedroom
• Decker12's Windows 10
• Wife iPad
• Everywhere
• Kid's Windows 10
• Decker12's Laptop
• Kid's Echo Alarm Clock

All me and my wife want to see is:

• Living Room Echo
• Bathroom Echo
• Garage Echo

There will never be a time that I want to connect to my kid's desktop with my iPhone to make my music come out of her desktop's speakers. I do however want to turn on my "FireTV 2 Bedroom" and listen to Spotify out of the TV speakers (by using the FireTV app and the FireTV remote, not by telling my iPhone to connect to it). I just don't even want it to show up in the list of possible things to connect to.

How do I fix Spotify so it only shows me the above 3 things?

I do not want to log out of Spotify on those other devices, because my kid and the Bedroom still want to play Spotify. In essence, I just want those other devices to "stop broadcasting that they're able to receive a connection from someone's iPhone".

I see no option in any of those clients to disable this broadcast feature. What's the solution?