You could also use Pawn and, yes, AskMrRobot is the most popular one used, even during Shadowlands.
You can use this guide “how-to-use-simulationcraft-and-pawn” The main one in that guide is the topic “Pawn”, scroll down until you find subtitle “How to use Pawn” & “How to use “StatWeightScore” is also another good one. I wouldn’t use both though.
Other sites like Icy-Veins and Noxxic usually provide stat weights that can be imported using the same way as Pawn and AskMrRobot.
The power of choice is yours and I hope I’ve provided some useful reading material for you.
Utilize the knowledge you learned and smite the foes down with extreme force and get the precious loot from rng.