>Compare bullion prices
https://findbullionprices.com/ (US)
https://eu.compare.pm (EU)
https://www.gold.de/aufgeldtabelle/ (DE/EU)
https://goldprice.eu5.net/ (UK)
 
>Bullion dealers
https://apmex.com/ (US)
https://providentmetals/ (US)
https://jmbullion/ (US)
https://sdbullion/ (US)
https://www.firstmajestic.com/ (US)
https://boldpreciousmetals/ (US)
https://bgasc/ (US)
https://bullionexchanges.com/ (US)
https://www.moneymetals.com/ (US)
https://goldenstatemint.com/ (US)
https://monumentmetals.com/ (US)
https://www.scottsdalemint.com/ (US)
https://bisonbullion.com/ (US)
https://libertycoin.com/ (US)
https://silvertowne.com/ (US)
https://schiffgold.com/ (US)
https://goldsilver.com/ (US)
https://sprottmoney.com/ (US)
https://pinehurstcoins.com/ (US)
https://www.goldeneaglecoin.com/ (US)
https://www.milesfranklin.com/ (US)
https://www.reddit.com/r/PMSforsale/ (US)
https://www.kitco.com/ (US)
https://www.atkinsonsbullion.com/ (UK/EU)
https://www.bullionbypost.com/ (US/UK/EU)
https://goldsilver.be/en/ (BE/EU/UK)
https://silvergoldbull.com/ (US/UK/EU)
https://www.chards.co.uk/ (EU/UK)
https://www.celticgold.eu/ (EU)
https://www.hollandgold.nl/ (NL/EU)
https://www.thesilvermountain.nl/ (NL/EU)
https://www.coininvest.com/ (DE/EU)
https://www.gold.de/ (DE/EU)
https://www.europeanmint.com/ (EE/EU)
https://www.acheter-or-argent.fr/ (FR/EU)
https://www.abcbullion.com.au/ (AUS)
https://bullionnow.com.au/ (AUS)
https://www.perthmintbullion.com.au (AUS)
https://www.jaggards.com.au/ (AUS)
https://www.bullionlist.com.au/ (AUS)
https://www.goldderoyale.com.au/ (AUS)
https://www.bullionmoney.com.au/ (AUS)
https://www.lpm.hk/ (HK/US/EU)
https://oldsilver.ru/ (EU/UK/US)
https://silvergoldbull.ca (CA)
https://canadianpmx.com/ (CA)
https://preciousmetals.td.com (CA)
 
Also your local coin shop
 
>Constitutional/"junk" silver info
https://jmbullion.com/ultimate-guide-to-90-silver-coins/
https://kevinsworkbench.com/junksilverguide/
http://coinflation.com
http://coinapps.com/