Both the one trait at a time and all traits at once Random Trait Generators have been updated to include the new aspirations and traits from The Sims 4: Businesses & Hobbies! (affiliate link) If you have the new pack, feel free to use them!
Random Trait Generators Updated for Businesses & Hobbies!
Can you also add the Grouch trait? I’ve had to pick an alternate trait for one of my sims that has it.