Blue Virginia is keeping a list of Democratic candidates for the 2017 Virginia House fo Delegates Race. They also track the 17 districts held by Republicans but won by Clinton. If they win those 17 races and hold their current seats they can turn the House of Delegates blue this fall.
Here is a graph from that story highlighting the Clinton percent of the vote per district in Virginia. The red lines are the House of Delegates Districts that Clinton won under Republican control.
There is plenty of opportunity. We need to contest every race. For help contact Full Slate Consulting at firstname.lastname@example.org.