Exhaust manifold tick

I have a ticking sound coming from both driver and passenger sides in the exhaust manifold area. I would like to resolve the problem within a couple hours without taking trips to the part store, but also don’t want to buy more than is necessary. I assume at least a couple bolts have broken on the exhaust manifold, but am unsure of what all has to be replaced. I am comfortable replacing the bolts and gaskets as they are relatively affordable, but will I need to replace the manifolds as well? They are considerably more expensive and I would be happy to reuse the old ones if that is an option. Thank you!