u/ConfidenceNext6385

New here so I apologize if this has been answered before

My dad passed recently and we found a bag of Canadian coins in his dresser. A quick look on top found a couple of $10 silver coins from the early 70’s Montreal Olympics, each in a hard plastic case. There’s hundreds of other loose coins in there.

I plan to inventory this set. What are my options for assessing value and finding reputable buyers.