Easy Site Maintenance For Magento 2 - Cynoinfotech
https://www.cynoinfotech.com/product/site-maintenance-for-magento-2/
The Coming Soon page is usually used as a notice to let customers know that a new product or marketing is ready to launch in the store. An advertisement will make your customers more eager to follow and visit your stores until the launch date. Magento 2 Coming Soon product extension helps store owners to show the product that is launching soon in front of the store. You can also show the date when launching the product with a timer with text defined from the backend. Store owner can enable from product edit page. Also add the date when lunching the product.