At the end of the summer I bought AG Adriano Goldshmied boyfriend jeans and I love them. They're crazy comfortable and a nice option if you're not really feeling tight skinny jeans. I've been thinking of different ways to wear them, instead of just with a v-neck tee.
Transition into fall Turtleneck season is soon (thank the good Lord) and I'm obsessed with this option from Faithfull the Brand. A slightly cropped sweater and whimsical slippers pair nicely with boyfriend jeans.
Borrowed from the boys Pretty much any top from Madewell looks good with boyfriend jeans. A button down is a really nice option with darker wash jeans (so you don't look all light blue).
For going out If you want to wear boyfriend jeans when you go out, find a slinky silk cami and heels. Revolve has a full cami section on their website right now that has such cute picks!