I do not know what exactly you are searching for, but after exchange listings, the only private place i suppose you can get tokens are probably on the project websites, it could be an ico, or a presale event, but it is available there. Another place you can fix tokens as such is to check smart contracts on forkdelta; you figure out the project you want to invest, get its smart contract, then head to forkdelta, and place a buy order.