Another option you can try before spending money, just to see if you like it, is to use straps that you would usually use for pulling movements or back work. Loop the straps around the bar about shoulder width apart or wherever your hands naturally come up to your shoulders and grip the remaining part of the strap that is dangling that you would normally wrap around the bar for pulling movements and "pull" the bar forward into wherever you like for the bar to rest(ie upper traps) tightly and snug.
I've done this with success and actually prefer this over the safety squat bar because the safety squat bar feels awkward to me. The safety squat to me feels kind of like a cross between a back squat and a front squat because I had a hard time nailing the right position of my torso and also finding the right balance of either pulling down or pushing up on the handles of the safety squat. It's all unique however to your own body and you will have to try it for yourself to see if you like it or not. Many however, as is evident in this thread, use the safety squat with success and like it so my experience may be unique and you can discount it as the majority of people like it.
I saw a video of Jordan Peters using the straps in the same way which I'm suggesting so you can search for it if you want and there are probably other videos demonstrating the use of straps also. Hope this helps Bro!