If you're looking for legitimate alternatives, I can help you with:

Public trackers (like The Pirate Bay) are filled with fake files. For a "top" quality ISO, you need private trackers focused on games.

Even if you own a physical copy of FIFA 19 for Xbox 360, downloading an ISO from a "TOP" site is only legally defensible under very narrow "backup" laws (which vary by country, and most do not allow circumventing copy protection). Electronic Arts (EA) still holds the copyright, and they actively monitor torrent swarms for this title.