Hello,
You can use our Latest product module for the latest products for your site.
https://www.sellacious.com/p/sellacious-extensions/free-extensions/latest-product
And as for the items on promo, you can use special category product module.
https://www.sellacious.com/p/sellacious-extensions/free-extensions/special-category-products
And for the frequently bought items, you can use our best selling product module.
https://www.sellacious.com/p/sellacious-extensions/free-extensions/sellacious-best-selling-products-module
All these modules are available on our App store for free.
Thank you
-Team Sellacious