You can, but you likely won’t find salvage cars on the auction sites we have listed here. Companies such as Copart (CopartSelect also offers driveable and relatively easily repairable vehicles, many with non-branded titles), ACV Auctions, and others offer a variety of vehicle types, including both repairable and scrap cars.
Buyer beware: You’d better be knowledgeable enough to understand what you’re buying when you step into a salvage auction, as you won’t get a refund if you don’t get what you thought you were buying.