PTIgui is good and it used to be freebut Hugin and Meshroom are still free and both can do 360 VR panos.
PTGui is awesome, but it's pricey (~$200 for the basic version, $300 for the advanced version). You get a life-time, perpetual license, though, so if you do a lot of pano work, it is a great value.I vote for PTGUI. Even though it's a little pricey, I've never regretted getting it. Have produced many panos from both the Mavic 2 Pro and the Mavic 3 Cine. Of course then DJI in-drone processing is good too, but not as flexible or correctable as PTGUI.