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>but you end up having an unreadable soup of <* <$> <$ >>=

True to some extent. After learning haskell, I find these operators very readable actually.

How do you Google them? As a Haskell newbie this was a big problem for me.

https://hoogle.haskell.org/?hoogle=%3C%24%3E

Often, by type signature using Hoogle

In ghci you can do:

Prelude> :doc <$>

and

Prelude> :t (<$>)

hoogle or hoogle+

Haskell also supports using any old function as an infix function by putting backtics around it, for instance (x `div` y). It’s a nifty feature that can improve code readability (especially in more mathematical contexts) when used well, I wish more languages had it.

Python supports add(5,6,7,8, *numbers) syntax.

Depending on dialect there can be reader macros [its analog] in lisp which allows defining your own DSL that can hurt readability even more than operator overloading