What herbs do you put in spaghetti Bol.

Just thyme. Maybe...maybe oregano.

My nonna was from Sicily, and she did not put herbs in her bolognese. She made it with pork fatback, pork ribs, tomatoes, red wine, and garlic. When I was little, my siblings and I were afraid to eat it because of the unidentified meaty bits floating on top.
I make mine with wild game: coarsely ground venison, bison and elk. I use a whole bottle of wine, and tons of garlic. At the end, I'll garnish it with just a bit of fresh thyme.

not sure about herbs they can vary according to taste but the only two recipes we use in our home are by Marcella Hazan - Essentials of Italian Cooking and another by America's Test Kitchen. Both are equally fabulous. Time consuming but worth it. If you make home made pasta you will have thought you died and went to heaven.

thyme!