It was about $170 with tax (Minneapolis) for a 7 inch arc of the rim that was, as the repair place told me, "lightly scuffed." He said that these wheels are very vulnerable and suggested putting a guard around them, similar to the one Juggleben mentioned above. He was going to ask around to see what the best fit for the Accord rims would be and I'll post again when/if he calls me back.
The main issue that I see is that on the 2018 Honda Accord Sport 2.0T (19") rims there is a break between the "Spokes" (so to speak). The rim does not go a full 360 degrees around. I think that the rim guards might have a problem where the spaces occur (essentially the guards would have nothing to wrap around/hold on to where the spaces occur.). I found a few things on YouTube:
https://www.rimringz.com/
https://www.rimbladesusa.com/product/rimsavers/
The AlloyGator bands look very good but you have to have an authorized dealer install them. Also, if you get a flat or change the tires, you have to have an authorized dealer install them again!?!?! ($$$).
The Rimringz appear to be the next best thing. You can install them yourself, but they are made of plastic (I'm not sure of how much protection they would provide.). They look good, but you have to fully deflate your tires in order to install them.
The RimSavers are the easiest to install and look good. They are held on by the heavy-duty tape strip on the back of the guard. I have read some of the reviews on these and it seems that they tend to fly off of the car after only having them on for a short time.
Again, with the 2018 Honda Accord Sport 2.0T (19") rims might have a problem with all of these guards, due to the spaces in the "spokes".