I always see people share images of various advanced stats for players and I can't seem to find where they do this. Anyone have an idea? I am looking to compare some players and their advanced stats.

I'd say the "Big Four" of public analytics sites are:

HockeyViz.com

Evolving-Hockey.com

MoneyPuck.com

NaturalStatTrick.com

HV and EH have paywalls for their more advanced work, but it's well-worth the money in my opinion.

There's also JFresh/TopDown who have some great work out there as well, but they don't have a website, just access through JFresh's Patreon. You can also see the raw data on Patrick Bacon's tableau.

AllThreeZones.com is Corey Sznajder's manual tracking project and is also really cool too, though it also requires a subscription.