Oh, I agree with you, Bagel. I expect most of these races (except CO) to be competitive. MS, KS, etc. should remain Republican (I'd rate them Likely R at this point), and GA will obviously not be an easy pickup (especially with the runoff law). NH is definitely Safe D, though.
I'm also not sure why Andy Beshear would want to run against McConnell, unless he's suicidal and wants to have his political career ended.
Andy Beshear will run for something of course. But, McConnell almost lost in 2008, lets not make him invincible. But Beashear is up and coming now, since Edelen lost in 2015.
https://en.wikipedia.org/wiki/United_States_Senate_election_in_Kentucky,_1996. Going to run against the same man his Father lost to 24 years ago, that'll be interesting.