#2. King Corbin
In the eyes of many, King Corbin is a name who shouldn't be in the conversation as an opponent for Brock Lesnar. He was poised to be a main-eventer in 2017, but his World Championship push was squandered at the hands of Jinder Mahal and he's never advanced up the card since, minus a small United States Championship reign.
He's always been a prominent upper midcarder, but he hasn't been able to break the proverbial glass ceiling and from the way he's been positioned, he's most likely going to stay in the same spot. We could see a day where he eventually transitions into a main-eventer and has a short World Championship run, but the only interaction we can see him having with Lesnar is a segment where he gets squashed.
There are many dream matches left for Brock Lesnar to have, but King Corbin isn't one of them. He would be good as a live event opponent, but there have been rumors that WWE could be cutting down on them.