Basically any Linux distro within reason and with a few exceptions. I think some beginner / gaming distros add dumb crap. I like OpenSUSE but use whatever floats your boat.
Tails is a specific use distro, the idea is that with it you can access Tor and other services while leaving minimal traces behind.
Their homepage highlights activists, journalists and even domestic abuse victims using it to avoid censorship/surveillance and access the internet safely in unsafe places.