When running my online business in Magento 2, I want to promote my site by allowing sellers to manage their shipping rate for worldwide, or selected country sale. Is there anyone here can suggest for me some tools that you find most suitable? Thanks a lot.
Using Magento 2 Marketplace Shipping Per Product for a long time, I suppose that it can meet almost of your requirements. For more benefits, this module can also help your marketplace to set individual flat shipping rate for each product from heavy, light to fragile items.
It brings lots of powerful functions for you as Admin, Sellers and even their Customers.
Let's review some outstanding features of this extension:
Hope this helpful for you!
Take a look at Custom Shipping Price extension from Mageside. This extension will give you an ability to apply any shipping price while creating orders from the Magento admin panel.
Shipping Matrix Rates is also designed for this purpose.
DEMO is available for both extensions.