On iOS Safari set your search engine to DuckDuckGo, use "!g" to search Google, and you won't see any AMP links.
Also, the search results in DDG were quite disappointing. I wish they were not but I just couldn't continue using it after few days :(
I will definitely give it another shot.
I've been a happy user for more than a year, and I don't get any of the AMP crap (which apparently isn't even shown on mobile Firefox anyway).
But you don't want to search Google. That's why you switched to another search engine, right?
For me DDG works out nicely without any need for !g 19 times out of 20, at least.
PS. I have changed default search engine in OSX/iOS Safari to DDG. Uninstalled Google app and installed DDG app. Let's see.