Sorry I've always thought that everyone knows Broughy1322 and that
his tracks are the ones that are mainly played. Of course there are many others made by other crew members such as the various
Broughy Verified ones.
Basically just play lots and play regularly and you'll start to see which ones are the popular tracks and you'll also start to see a few regular names pop up in the created by section of the information.
These are the most popular tracks made by people in NoDo PS4:
socialclub.rockstargames.com/games/gtav/ps4/jobs/Many of them, particularly Samy's, are more Sweat Buckets than NoDo though. They're good though. 'd say these are the ones that are the most played that are actually serious tracks, made by and for NoDo, and regularly appear on playlists:
The North Loop (Broughy1322)
Los Santos Grand Prix (Broughy1322)
Blaine County 24h (Broughy1322)
Olympic Grand Prix (Broughy1322)
Cutting Coroners GP (Broughy1322)
Dockyard Autocross (Opalescent Falcon)
Alamo Grand Prix (doodlemonopoly)
South East LS Grand Prix (ZeNzI23)
Rockford Hills Circuit (LancerEvoWRC)
Popular Circuit (alfislegend)
LifeInvader Grand Prix (ZeNzi23)
Ultimate GP (Jontti500)
Vinewood Hell Grand Prix (ZeNzI23)
Project Z Grand Prix (ZeNzI23)
Farmyard Frenzy (North) (rb-driftin)
Over and Under Bridges (LancerEvoWRC)
Rockford Ring (LancerEvoWRC)
Inner City Sprint (rb-driftin)
South Los Santos Circuit (LancerEvoWRC)
Apex Predator (Liquid7394)
Luna Raceway (parksguard)
Vanilla Unicorn GP (smitveedub)
Bridges and Corners (jbcarfreek)
Casino Royale (parksguard)
Vinewood Road Casino Loop (LancerEvoWRC)
LS Customs Circuit (CantDrive55Andy)
Prototype 11 (ChrisDE22)
Palomino Raceway (LancerEvoWRC)
Rockford Club Course (LancerEvoWRC)
Overflod Raceway (Opalescent Falcon)
Bekbergring (Fachuro)
Richards Majestic (BuckAbe)
Wave Goodbye (moppaking)
Wolfs Realty GP Full (SubaruWolf)
Epsilon Raceway (ChrisDE22)
Not a definitive list but about as comprehensive as I can get from the top of my head and by quickly browsing the forum and social club.