I can't really speak to the other alternatives, but if someone offers you "mushroom coffee", don't take it if you were hoping for a cup of coffee.
It tastes nothing like coffee. Maybe there's benefits from drinking mushroom juice, but all they're doing by calling it coffee is annoying would be coffee drinkers.
There's plenty of variations of this out there, but it's gotta be the Star Trek warp core droning.
https://youtu.be/D0w_ixXDCtw