Do any hotels/chains offer RV spots with electric or hookups

The closest I've seen is motels in areas around large fishing tournament lakes have a electric hook-ups for folks in the tournaments to charge their boat trolling motor batteries.

Although not prevalent now, could be different in the near future. When electric cars become the principal means of transportation, I can envision hotels, and motels installing electric charging stations in their parking lots and perhaps these stations will be able to charge electric Rv’s which will be coming soon.

I don't know about hotels and chains, but some motels and casinos do have RV sites or parks associated with them. Often they give you access to what facilities are available, like restaurants & recreation facilities.

I have compiled a list of the higher rated RV parks around the country over the last few years (low 7's to 10 on a 1-10 rating scale). I suggest you refer to your favorite RV search and rating site and do a name search for "hotel" and/or "motel."

Below is an extract from my collection. I have only stayed at the Hollywood Casino in MS and the A+ Motel in LA from this list and they were both fine. I have heard good things about the Marathon Motel and RV Park.

Blake Ranch RV Park & Horse Motel, Kingman, Arizona
Newberry Mountain RV and Motel Park , Newberry Springs, California
A+ Motel & RV Park, Sulphur, Louisiana
Hollywood Casino Hotel & RV Park , Robinsonville, Mississippi
Edgewater RV Resort & Motel , Lakeside, Montana
Saddle West Hotel Casino & RV Park , Pahrump, Nevada
Cinderella Motel & Campsite , Grand Island, New York
Siding 36 Motel and RV Park , White Lake, South Dakota
Scenic View Motel & Marina, Lone Star, Texas
Marathon Motel and RV Park, Marathon, Texas
Sandollar Resort Motel and RV Park , Rockport, Texas
Leeds RV Park & Motel, Leeds, Utah
Barron Motel & RV Campground , Barron, Wisconsin
Lazy Acres Campground & Motel, Riverside, Wyoming

Casinos on the west coast sometimes have spots.

While I was working I traveled a lot for work, I would stay in big cities and small towns the closest I ever saw in Fairbanks, AK, but the plug in were for block heaters.
Most hotels have tight parking lots to begin with, can’t see adding RV sites.

we have seen a couple motels that set up a few elec hookups..a few years ago. I hoped it would catch on, but apparently not.

I travel often for my job and NOT ever seen any hook-ups at any of the hotels I have stayed at...

I am a Marriott Rewards Member, and primarily stay at their properties when I can.

Now that does not mean there are not any......