When it comes to expressing the idea of people or options being in agreement with each other, there are several synonyms you can use instead of the phrase "are in accord." Some common alternatives include "concur," "agree," "harmonize," "conform," "unite," "overlap," "correlate," "coordinate," "match," "jibe," "blend," "meld," and "align." Each of these words has a slightly different nuance, so the choice you make will depend on the context and the exact meaning you want to convey. But in general, they all suggest a state of harmony and consistency between different entities.