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.
Well, in some fanfics, Black Goku might be depicted in a scenario where he encounters a strange or magical milk. It could be part of a plot where the milk has some special power that either helps or hinders him. However, these kinds of fanfics can be quite rare.
In a Goku vs Broly crossover fanfiction, anime characters could have different reactions. Some might see Goku as a symbol of justice and be inspired by his never - give - up attitude. On the other hand, Broly's raw power could intimidate those who value brute strength. And there could also be characters who try to interfere in the fight for their own motives, like to stop the destruction that such a powerful battle could cause.
Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
Finding a 'Black Goku y Milk' black anime fanfic might be a bit of a challenge. You could start by looking at the tags on popular fanfic websites. Maybe search for tags related to Black Goku and then look for any that might be related to food or strange elements like milk. Another option is to follow some well - known fanfic writers in the Dragon Ball fandom and see if they have ever experimented with such an idea in their works.