Mimic Snakes? - beyond Milk Snakes

Everybody knows that milk snakes mimic coral snakes, as well as of other coral snake mimics. However, I'd like to learn more of other venomous snake mimics, such as snakes that mimic vipers. Now, I'm mainly looking into snakes that visually(ex. Patterns/Colors) look like vipers, as opposed to behave like them, since it has been mentioned before that they undergo mimicry behaviour, such as tail rattling, hooding, and even head flattening. As far as colors, morphology, and patterns go though, not much is said beyond milk snakes. All I know of are Viper Boas and Rough Scaled Sand Boas, but I'm also curious to ask, would you all say Nerodia spp. are considered mimics of Agkistrodon spp.? I'm curious to learn more!

Hognose (both eastern and western) mimic rattlesnakes in pattern and sound (their hiss sounds similar to a rattle). They also hood which could be considered "cobra mimicry" to some.

My corn used to rattle her tail when I'd go to grab her.

The pituophis clan all rattle tails, flatten heads and even have a little piece of cartilage on the end of their trachea that vibrates to make their hisses even louder. Their pattern is also close to many rattlesnake species.

My corn startled me pretty good the first time he tail rattled. I didn't know they could do that lol!

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All of my baby corns do that tail rattle at feeding time and a couple do it everytime I open their tubs they are so darn cute trying to act tough lol. I used to catch wold eastern hognosed as a kid and the would tail rattle sometimes too. Also we have a native snake in Ohio I think its a type of racer that flattens out to make a hood mimicking a cobra. And there's a couple native corns that really resemble copper heads if you don't know the difference.

Do you all know of snakes that mimic patterns of venomous snakes? (Besides milk snakes)

There are a couple that 'mimic' that I know of. Hydrodynastes Gigas or the false water cobra, is a large rear-fanged snake that can hood. One of my favorites that I am still trying to track down is Malpolon Moilensis also known as the egyptian false cobra, I have seen it under 2 other scientific names so I am not sure what is currently accepted. There is also the Chinese false cobra Pseudoxenodon Macrops, but I believe they eat frogs and care in captivity is difficult, if you could ever find one. You should know they are all opisthoglyphous.

I forgot, if you are into hognose, I personally find the eastern better looking, Heterodon platirhinos. I should also say there is some kind of snake that looks dangerously similar to a tree viper, but I honestly cannot remember the species of either snake.

Wouldn't believe that any Nerodia mimic any Agkistrodon if Dr. Brady Barr himself told me. Not familiar with any other snake mimcs that do so from a strictly morphological perspective.