You can try selling them on online platforms like eBay or Amazon. These websites have a wide user base and can increase your chances of finding buyers.
You can start by listing them on online marketplaces like Amazon or eBay. Just create an account, describe your books accurately, and set a reasonable price.
Social media platforms can be useful too. You can create posts or pages specifically for selling your fiction books. Or join book-related groups and communities to reach out to potential buyers. Another option is to contact independent book distributors who might be willing to take on your titles.