I'm mining, not investing, thus I want to find some new (preferably obscure) coins to play with. That's why I specified that I didn't want any ERC20 tokens. I currently have 166 coin clients installed, but most of their blockchains are dead, and very few are still listed on an exchange.
I'd prefer to find an exchange I like and work backwards to see what coins they have available, rather than find a coin via a third party then figure out the exchange(s) to use for it.
I know it seems like a weird approach, but remember my perspective is like that of a multipool operator, rather than a retail investor.