The data on FindNiche upgrades on hourly basis, so you always can catch out the trending niches and make the right decisions. It also serves with different filters, so it's quite user-friendly, especially when you find to search out some products related to some specific categories or countries. All in all, just try it out.
AliShark - Usually, you only see those top-selling products, leaving those hidden gems behind. With Alishark, It doesn't have to be a top seller to be spot anymore.
Carbon Fields - Carbon Fields makes it easy for you to create custom fields for post types, taxonomies,
Ecomhunt - Ecomhunt allows you to easily find products that are already proven to sell or how we like to call them Winning products! - in only a few clicks - it's time to stop guessing, start selling!
WPforms - Drag & drop WordPress form builder
AliInsider - Find Most Profitable Dropshipping Products in a Click! Analyze Competition, Check Saturation of Any Product, Find Top Suppliers & Target Markets.
Pods Framework - Plugin and framework for adding custom fields and custom content types to WordPress.