All this means for myself who is rather new to collecting and saw the prices of some coins and silver right before the pandemic hit and now is that it is now time to either sell or reduce your purchases.
I would steer clear of much
US coinage except some ultra-moderns (the often belittled golden dollars, copper clad nickel cents and other circulating coinage). Some world coinage looks far better --- recently bought a decent Uncirculated 1936 Canadian silver dollar for $55, mintage about 312,000. If that were a Morgan or Peace the price would be triple or more. US classic coinage is grossly overpriced (although very attractive still and deservedly so) so I would search high and low for a reasonable price.
I would say the people in the best position to sell are those who bought coins about the time from 1992 - 2007. After 2007 there were some good years but also a few when bullion prices skyrocketed.
And finally, by coins you like for what they are not their long-term term premium potential.