I’m odd and not a big fan of drop and hook at times. Sometimes I’d rather sit at a warehouse for 45 minutes than swap to a preloaded trailer that may or may not be missing a mud flap and a freshly picked up bolt in a tire. But anyways...
I did a short stint with heartland express. Majority of all loads were pre-loaded and then store deliveries, so unloaded in a timely manner. Lots of Lowe’s, Tractor Supply, etc. Miles weren’t great though and lots of short hauls, so probably not what you want.
Danny Herman has a long length of haul and a decent amount of drop and hook from what I’ve heard and they stay south so Winter isn’t as much of a hindrance. Pay scale is a little lackluster, but no Winter and 1000-1500 mile runs regularly seems like an enjoyable way to drive OTR.
I’d assume JB Hunt intermodal is majority drop and hook.