OpenStreetMaps is getting there. Heavily depends on the quality of maps in your area. For Youtube, you could use something like invidio.us or newpipe, which shows you only the channels that you have subscribed to.
OpenStreetMap actually seems quite excellent from a quick check. I've only glanced at it every now and then during the last few years (I used to contribute a bit back in around 2012) but now it actually seems awfully attractive compared to Google's/Apple's offerings - with all the annotations/coloring it actually looks like a real map!
Are there any good YouTube alternative front ends for Apple TV? I found a Plex plugin that might do the trick. Haven't tried it yet.
https://github.com/kolsys/YouTubeTV.bundle