http://www.sltrib.com/news/politics/2017/09/30/salt-lake-county-mayor-ben-mcadams-seriously-considering-a-run-against-mia-love-for-congress/In a year like 2018 and McAdams mostly surviving the controversy with the homeless debate not an impossible race. He certainly has a credible shot.
Though I am skeptical still because he would essentially be giving up on 2020 in which he would be the only credible Democrat to run for governor in 2020. He probably just figures he has a better chance at a congressional race.
There are plenty of other Democratic officials who could make a credible race against Love.
Hopefully the independent redistricting passes on the ballot in Utah next year because if that happens Democrats would very likely have a fairly safe congressional seat starting with 2022 elections. Though considering the GOP bench in Utah it would have to be "lean or likely" instead of "safe".