I use the Kuiu Pro. It is reasonably quiet. If Iḿ still hunting I prefer a strap harness like a Rick Young. I use the Vortex one but they´re all basically the same.
Based on all the comments touting the BinoBro I think Iḿ going to pick one up. Looks like it´s a little cheaper than the Kuiu.
Surprised no one´s brought up the Adak. I haven´t used one but it was a toss up between that and the Kuiu Pro for me.