You're right to have that type of reaction to consider Biyombo. Don't do it haha. He's outside the top-230 on the month (which encompasses most of his good games) and actively hurts you in more areas than he helps. Theis is probably a hold but understand if he isn't your favorite kind of guy for a H2H format.

If you're looking for rebounding help, some guys who'd be useful would be Jakob Poeltl, JaVale McGee or Cody Zeller if they're floating around your wire.