98 Dodge ram 1500 hood

The obvious answer is "another Dodge Ram of that era." Check all the local salvage yards, most maintain a computer inventory and can tell you if they have a matching hood. Most yards can also pull inventory from other yards, so if they don't have it they can get it. You can also check online parts dealers like Certafit, for a new hood. Even CarID has them, but prices are all over the map. I would try to get a used hood off a donor vehicle first, as those replacement hoods are too often a lighter sheet metal gauge.