Need recommendation for printing shipping labels FedEx

I manage a new website for a client. They contracted with a current vendor called ShipRush for label printing software for FedEx. Long story short the software conflicted with GoDaddy’s server defaults and they could not print the labels.

I need a replacement. The company I manage the website for offers three flat rate shipping options for its customers, free ground, two day and overnight. Rates were negotiated with FedEx and are not dependent on weight or size of the box.

What I need is a plugin that will print the label once the order is processed and ready to be shipped. Any suggestions?

https://www.ads-software.com/plugins/woocommerce/