If you have been streaming D/ST and are making a plan to close out the season I would look at riding with a combo of the Falcons and Packers as they pair very nicely and are both less than 25% owned (ESPN). Their respective matchups are:

Week 13: Falcons vs Jets

Week 14: Packers vs Giants

Week 15: Falcons vs Panthers

Week 16: Packers vs Panthers

Week 17: Falcons vs Bears

Could do a lot worse than closing against the Jets, Giants, Panthers (2X) and Bears and both are likely available in your league.

If you prefer, the Texans also pair well with the Falcons and have the Jets in week 14 and Browns in week 16 and are likely available as well.