Solo, Scuola Grande di San Rocco works.
Often called 'Venice's Sistine Chapel', this is two storeys of dramatic Tintoretto canvases conceived as a single overwhelming program, with mirrors provided so you can study the ceilings without breaking your neck — and it's reliably uncrowded. The catch: it's one artist, one register of intense religious drama; visitors not moved by Tintoretto can find it heavy and repetitive.