When looking for synonyms for the phrase "active supporters," there are many great options to choose from. Some of the best suggestions include "enthusiastic backers," "dedicated followers," "loyal advocates," and "committed allies." Other potential synonyms include "ardent promoters," "steadfast boosters," "passionate devotees," and "zealous champions." Each of these phrases conveys a similar sense of strong support and sustained engagement with a particular cause, organization, or idea. Whether you are describing a group of volunteers, a political movement, or a community effort, using one of these synonyms can help to add variety and depth to your writing.