I too went with the lions opener and the two 9er games, but I went outside the conference and chose the week 10 matchup with the dolphins.
By week 10 the Rams should know who they are and what they have going into the stretch run which will include the eagles, bills, 9ers, and then closing it out vs two division foes.
Beating the high flying offense of the dolphins with their ex-9er coordinator would be a great sign the defense is ready for those big offenses of the eagles, 9ers, and bills.