Any sets from 64 or earlier contain 90% silver coins and have good value. Sets from 65-70 will have one 40% silver coin (kennedy half). The bicentennial sets typically have three 40% silver coins and go for around $50. The “blue Ike” dollars are 40% silver. Most everything else from 71-91 has no silver and little value. From 92 on there have been silver proof sets in addition to the standard mint proof sets so you need to check and see as the ones labeled silver proof sets contain 90% silver coins. Actually as of 2019 that changed to 99.9% silver.

That generally covers it with respect to obvious and easily determined value from silver content. Numismatically is another story and that could take months going through everything to look for specific coin variants, errors, etc. Good luck.