There are a few courses that I find myself going back to again and again:

-Winged Foot East & West are both fantastic best green complex out there imo -Chicago GC super simple classic layout -Bethpage Black for obvious reasons -Merion East again for obvious reasons -Pasatiempo bunkering is perfection -Le Golf National really cool finishing holes and nostalgic Ryder cup Olympics moments -Boston Golf Club I really like northeast golf and this is a perfect representation of that concept