What is the most efficient way(s) to search for recent APRs for type coins?

Let's say that you were considering purchasing an 1876 With Motto seated quarter in MS-66, and you wanted to get an idea for pricing of WM seated quarters in 66, not just the 1876 year. What is the most efficient way to search for recent auction prices realized for WM seated quarters in 66? Obviously, you can look at each date (1875, 1876, 1877, etc.), but is there a better way, using tools like CoinFacts, PCGS auction prices realized, Heritage auction archives, or any other available internet resource?
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In honor of the memory of Cpl. Michael E. Thompson