I think Witten would be a solid option. I was lower my expectations because I don't see him producing as much as he is now, but I seem him as a reliable TE for Cowboys team that is struggling.
Another option, our own Ben Watson. It's only one week, but once Flacco starts to trust you, it's on. He may be a sneaky addition that nobody bats an eye at except Ravens fans.
Tight end in fantasy is all about touchdowns to be honest so I think Cameron brate could be a good play this week