Instructions
Check the brand or manufacturer of your chess set. This information may be engraved along the sides or back of the board, or an insignia may be carved under each individual piece.
Research the brand and manufacturer of your chess set online. Contact their sales department to inquire about purchasing a single king piece. They may accommodate your special order.
Search for the brand on online marketplaces such as eBay and etsy. Many sellers specialize in collectible chess sets and pieces. If you see a listing for the set, message the seller and ask if they offer individual pieces.
Visit thrift stores and second-hand shops regularly to check for new chess sets and pieces.
Visit an online chess set store such as Chess Store Express. Some vendors sell individual pieces and can have access to rarer pieces.