Below are the `$` like operators in Haskell (view in fixed width):

          ---------------------------------------------------------------------

          | Function first           | Op   | Function second          | Op   |

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| Plain   | (a -> b)   -> a   -> b   | $    | a   -> (a -> b)   -> b   |      |

| Functor | (a -> b)   -> f a -> f b | <$>  | f a -> (a -> b)   -> f b |      |

| Applicat| f (a -> b) -> f a -> f b | <*>  | f a -> f (a -> b) -> f b | <**> |

| Monad   | (a -> m b) -> m a -> m b | =<<  | m a -> (a -> m b) -> m b | >>=  |

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The "function second" forms I couldn't find for "plain" and "functor". 

What are the most common operators to used in these places?