The phrase "whatever one wants" has various synonyms that can be used to express the same meaning. Such words include "whichever," which means any one out of a group; "anything goes," which suggests that all options are open; "to each his own," which implies that everyone has their own preferences; "per their choice," which indicates that something is decided based on someone's decision; and "at will," which suggests the freedom to make choices. Other synonyms include "no matter what," "whatever floats your boat," "as one pleases," and "whatever tickles your fancy." These words allow people to express the idea of having options without being too specific or restrictive.