Some online manga libraries like Viz Media or Comixology might have Dragon Ball Kakumei manga. However, it might require a subscription or purchase to access.
Honestly, comparing the strength of anime Goku and manga Goku is tricky. Both versions have their unique strengths and challenges depicted differently, making it hard to make a clear-cut comparison.
In general, it's a bit of a toss-up. The strength of Manga Goku and Anime Goku can vary depending on the specific arcs and battles. Sometimes, it might seem like one is stronger in a particular situation, but that could change in another.
In the manga, Goku has experienced death multiple times. However, his death is often a part of the narrative and doesn't mean the end for him. Resurrection and comebacks are common in his storyline.
I don't think there's a clear winner. Both Manga Goku and Manga Saitama have unique and powerful abilities. It could come down to strategy, luck, or even the author's imagination!