What RBs can I target with any combo of 2 2026 2nds and a 2027 2nd?

10Man Superflex PPR TEP

Just like the title asks. I have a team that has a ton of upside, but no bonafide RB. I have Harvey, Allgeier, Monongai, Brooks, and Charbs. I realize I won’t get a star with just 2nds, but do you think there is anyone I can add that I can just plug and play RBs based on matchups?