Team Outrunners as next tag champs. Take advantage when their popularity is growing - as opposed to when it's at their peak and risking watching it decline AFTER winning gold - as it's not a gimmick that's likely going to have a lot of long-term miles in it (though to be fair I initially thought the same with Orange Cassidy). And they are selling a lot of merch right now, so fans are showing they are wanting to invest in them.
Sure, there isn't much momentum behind them as far as wins and losses go, but this gauntlet is the perfect match format to have someone like the Outrunners to jump to the front of the line. "Fluke" wins happen all the time in a one-and-done format. Then you can roll with the big UMBC over UVA type underdog story for the tag title match, and there's not a more tried and true story than a big underdog chasing and overcoming the odds.