01 Guided tours of the collection
3 compared from €35 typically 2h 4.03 average
From €35, median €63, and the semi-private tour capped at six people carries the highest rating of any museum product in Paris at 4.97. Two hours, and the value is different from the Louvre's: the Orsay is small enough to navigate alone, so what you are paying for is the reading of the paintings rather than the route through the building. Worth it if the Impressionists are the reason you came.
02 The Orangerie and the water lilies
2 compared from €23 typically 2h 3.16 average
From €23, median €40, and a ten-minute walk across the Seine into the Tuileries. Two oval rooms built to Monet's own specification hold eight water-lily panels at eye level, curved around the walls, with daylight from above. Forty-five minutes covers it. It is the quietest major museum in central Paris and the ratings here are middling only because the tickets are sold as bare admission.
03 Entry tickets and priority access
7 compared from €20 typically 2h 4.05 average
From €20, median €33. The museum takes walk-ups most days, so a timed ticket here buys convenience rather than access, which is why this group rates lower than the guided one: reviewers compare what they paid against a queue that was not there. Book a slot for Sunday, for the first Sunday of the month when entry is free, and for the Thursday late opening.