Aside from exchanges, is there a place where people list private token sales.
I am looking to acquire tokens that have little to no volume and have fallen 95-98% since ICO.
People that have that coin can see it to you. All you need to do is find them. If coin is PoW you need to find the miners if coin is an ICO you need to find those that were part of ICO crowd sale. I am sure they are wiling to part with some coins. All you need to do then is to set price.