Below is an example of the Allstays map filtered for Cracker Barrels. We have thought about staying at a few, but they tend to be in fairly congested areas and tend to be hard to get into and out of with a 30' trailer. If you look at the satellite view of their parking lots, the long spaces are the correct length for a bus, but not long enough for a 55' rig.
If you haven't checked out Allstays, you may want to and we have found that Harvest Hosts now has many locations to overnight. Harvest Hosts was just ok in 2020, but someone there did some serious dialing and smiling this winter and they have added hundreds of overnight parking locations. I would seriously give Harvest Hosts a look.