I have an anery motley stripe baby corn and I can't find adult pics of that exact combo, but the closest combo I've seen is anery stripe, which is solid silver typically with the yellow along the sides starting at the neck like most corn snakes.
How about a Baird's rat snake? Mostly gray, or silver-gray, but check w/ breeders...some have a lot of yellow or orange between scales.
And they're really mellow & nice snakes too...they get about 6' long & are slender...excellent pets, "mambas" they aren't, lol. Easy to feed on f/t also.