If they're not going to put the Universal Championship on Braun Strowman at the Royal Rumble, it's time to get him completely out of the main event picture for a decent spell. When I look at Raw, two guys who've been true highlights of a mostly terrible show in the post WrestleMania months have been Drew McIntyre and Seth Rollins. Seth has been the workhorse of Raw for 2018, he's got the babyface support of the fans and he's someone else that I think could pull a great match out of Lesnar. McIntyre is doing a really nice job as a heel and even though such labels don't mean squat to Vince anymore, I don't think putting him against Lesnar for WrestleMania would work out the best as it'd be another example of people not knowing who to cheer for.
To be perfectly honest, I'd probably be okay with just about anyone from Raw winning as long as it meant they were getting the Universal Championship off Lesnar. For almost 2 years, minus Roman Reigns' brief run before he had to give it up, Raw has lacked a consistent main event championship picture and it's been one, of many, significant things that's hurt the red brand because so many are just burned out on it.