Preheat the oven to 350 degrees. Mix the thyme, rosemary, paprika, salt, and pepper. Cover the roast in the seasonings. Thinly slice 3 onions. Mince 6 cloves of garlic. Heat up a cast iron skillet with 2 TBS of olive oil. Sear each side of the roast in the hot skillet for 2 minutes on each side. Remove the skillet from the pan. Add one cup beef broth or red wine to skillet, scraping bottom with wooden spoon for one minute. Put the roast back into the skillet and cover with onions and garlic. Put in oven, covered for one hour. Flip roast and cook uncovered for one more hour, stirring half way though. Finally, flip again and replace lid for a third hour. When roast is finished it will be very tender. Serve chunks of beef with onion glaze poured on top.