Can someone suggest a turntable shelf?

Glass shelves are used on some very highly regarded stands including those by Naim and Wilson Benesch.

I double and triple Thorman----don't even think about this if you can't attach it to studs!!!
Bill

Finite Elemente or Grand Prix...

I've never seen a Scoutmaster placed on a shelf. I worry that this project will be a waste of your energy. I'm not worried about wasted money, because if you can afford a Scoutmaster, you can afford a shelf. But it takes effort to find studs and bolt into them. If your Scoutmaster isn't floating your boat now, a shelf will not provide a silver bullet.
Hukk

While I bought a shelf, I've never opened it and am going to sell it. I do think I need to buy a better, more solid rack though. Mine is very wobbly.