I recently found a seller on eBay who creates player specific lots from newer sets. Some of the starting bids are a little high but some decent deals can be had on rookies. I took advantage of a Tyler Glasnow lot that had a $5.99 starting bid. That turned out to be the only bid.
The auto was the centerpiece of the lot. I've been adding a decent amount of Glasnow cards ever since he got sent back down to AAA. He has been dominating down there so maybe he can stick around for good when he gets called back up in September.
All in all not a bad lot and a nice easy way to accumulate a sampling of cards from two higher end sets. The auto was just icing on the cake.
Here is a link to the seller on eBay. You might be able to find some deals especially if you buy multiple lots to save on shipping (I assume with 100% feedback he does this).