Magento 2 Pre-Order allows customers to place orders for products that are not yet available. It enables businesses to generate sales and gather customer interest....
https://store.webkul.com/magento2-pre-order.html

Magento 2 gift card extension allows you to generate gift cards. With this extension, the store owner is able to create gift cards for products....
https://bit.ly/2MZtxMa