Who is most likely to develop sjögren’s syndrome?

Autoimmune. Sjogrens is a manifestation of autoimmune disease and most people with sjogrens have other autoimmune diseases, e.g., rheumatoid arthritis, lupus, etc.
Sjogren's syndrome. Anyone can develop sjogren's syndrome. It typically occurs in people with one or more known risk factors (people older than 40, women. History of rheumatic disease).