What are the best sources for syndicated deals?

[Christopher Nemlich]

I'm looking to diversify into real estate but need to remain fairly passive given my day job. I've started off by putting a turnkey duplex under contract that will close this week, but the more I look at it the more I think turnkey won't give me the scale or upside I eventually would like. 

This brings me to syndicated deals. I've looked at a few crowdsourced websites like Crowdstreet and Cadre, but I suspect the best deals are not found through those public forums. Any advice on how to get started in this area?