"Everywhere possible" is a phrase that denotes a sense of ubiquity or all-encompassing coverage. Some possible synonyms for this phrase include "in every conceivable place," "across the board," "throughout," "all over," "across the spectrum," "universal," "widespread," "all-encompassing," and "omnipresent." These synonyms can be used interchangeably depending on the context, but they all convey the idea of a total or complete coverage. Whether it's in relation to marketing campaigns, social movements, or scientific studies, the goal of reaching "everywhere possible" is often the aim - and having a variety of synonyms at one's disposal can help to convey that notion more precisely.