"Sol Hurok" is perhaps a difficult word to find synonyms for, as it is the name of a specific individual. Sol Hurok was a renowned and influential impresario in the field of performing arts, particularly in bringing Russian ballet, music, and theater to international audiences. One could perhaps use synonyms related to these fields, such as "impresario," "producer," or "promoter." Alternatively, one could use synonyms for the qualities or achievements associated with Hurok, such as "innovative," "pioneering," "visionary," or "game-changing" - all adjectives that could equally be applied to Hurok himself, as well as his impact on the arts industry.