#2 Finn Balor
If WWE doesn't want to put Roman Reigns back in the Universal Championship picture, they could decide to have him challenge for the Intercontinental Title, which is currently being held by Finn Balor.
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On top of that, WWE could add Bobby Lashley to the IC Title feud, making it a three-way program. This doesn't mean that Reigns has to end up winning the Intercontinental belt, but it'd at least give him something notable to do if the company doesn't want to book him against Seth Rollins coming out of WrestleMania 35.
If this ends up being a singles program between Reigns and Balor, then I'd expect to see Reigns get the Intercontinental Championship, as WWE likely doesn't want to have him lose any time soon. But if it's a three-way program, then they wouldn't have to beat Reigns, as he wouldn't need to be involved in the finish of the match.