High quality GIFs

I’m new to animated gifs, and exporting in GIF format is vexing! The best ways I’ve found so far to export in decent quality are (1) gifgun (2) giphy. I’ve tried the Premiere way but it’s not as good, plus it needs me to raise the FPS to at least 50 and I’ve heard that a high fps GIF can be too taxing. I’ve tried GIMP, too, and it didn’t work out well… could be because I’m a GIMP beginner, though. I plan to check out Canva next - does anyone have experience there? What is your favorite way to export animated GIFs?
I really need to export in a way that won’t destroy the professional quality of it… Any and all tips are welcome.
Thank you in advance!