Invincible is an Amazon Original series. The official and legal ways to watch the series are:

These sites operate by frequently changing domain names and using mirror sites to evade blocks by ISPs and law enforcement. Authorities continue to take action against them, but new domains keep appearing.

The absolute best way to experience Invincible Season 2—complete with official multi-language audio tracks, crisp 4K resolution, and subtitles—is through its official broadcasting home. 1. Amazon Prime Video