There are several different options for selling baseball cards depending on the type and value of the cards. For higher value collectible cards, your best options will be through online auction sites like eBay, specialized sports card auction sites, or consignment through local card shops or national dealers. For more common cards worth under $50 or in bulk lots, local shops or general online selling sites may work best.

Evaluating your cards is an important first step to know which options are suitable. Look up recently sold prices on eBay to get an idea of current market value. Pay attention to details like player, year, condition and any special qualities that can increase value. Have your more valuable cards professionally graded if possible to attract serious buyers. Grading adds to resale value and reassures buyers of authenticity and condition.

If selling through auction sites, take high quality photos showcasing all relevant details. Write thorough yet straightforward descriptions mentioning any flaws. Start auctions at reasonable prices rather than overly high “buy it now” listings that may not attract bids. Ship carefully in new toploaders or card savers inside a rigid mailer with tracking. Respond promptly to questions from prospective buyers.

For consignment, choose a reputable dealer that specializes in your sport. Compare their commission rates and marketing reach. Most take a rate of 10-20% upon sale. Have your cards organized logically with prices clearly listed. Provide photos and available for dealer inspection before accepting items. Consignment allows leveraging a dealer’s customer base while avoiding upfront costs of marketing yourself. This is often best for high value vintage cards.

Local card shops offer in-person selling and may buy common cards outright in bulk transactions. Cards worth under $10 each individually often sell best this way rather than online. Shops also repurchase inventory as their business needs change. Always shop around to multiple local stores and get offers in writing before agreeing to any bulk sale.

General online marketplaces like Craigslist, Facebook Marketplace or others are an option to reach local buyers. Photos and clear asking prices are still important. Meet prospective buyers in a public place if exchanging cash. This targets the local collector base who want to see cards in person before buying.

Whichever method you choose, present your cards professionally with an eye towards building trust with buyers and collectors. Research recently completed sales of comparable items to help price appropriately. Reliable shipping and responsive communication will keep customers happy and foster positive feedback and repeat business over time as you liquidate your collection. With patience and marketing know-how, you can maximize the resale value of your baseball cards.