Plugin name: SS Dynamic Shop
Plugin link: https://www.spigotmc.org/resou…ynamic-shop-1-13-2.65603/
Description: This plugin allows for GUI admin shops. Some key features are dynamic pricing, quick sell, shop hours and signshop/localshop/deliverycharge. The prices will vary based on supply and demand, players can quickly sell their items without having to search for the corresponding shop item, the shop can enabled at set times, and you can decide which type of shop is best suited for your server. It's full of features and very well done as far as I can see! 