It's really hard to say. Minato is extremely fast with his Flying Raijin and is a very intelligent fighter. But Naruto has an incredible amount of chakra, his Sage Mode, and his Six Paths powers. If Naruto can get close enough to Minato, his brute strength could overpower Minato. However, Minato's speed and strategic mind might keep Naruto at bay.
In some 'minato vs naruto fanfiction', there could be a scenario where they battle in a different dimension. Minato uses his Flying Raijin to quickly move around and Naruto counters with his shadow clones and massive Rasengan attacks. Also, a scenario where they fight not as enemies but in a friendly spar to teach Naruto some secret family jutsu that only Minato knew would be really cool.
An 'abusive isshin fanfic' is likely a fan - created fictional work related to a character named Isshin that involves some form of abuse in the storyline. However, this can be a very disturbing and unethical concept if it involves real - world harmful types of abuse.
There are many out there. A really good one might focus on the emotional reactions of Team Minato. For example, Minato might be proud of Naruto's strength and how he overcomes Pain. Kakashi could be in awe at Naruto's new techniques. Their reactions can enhance the overall viewing experience in the fanfiction.
You can try looking on popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). They usually have a wide range of Naruto - related fanfictions, and you should be able to find some with the 'Team Minato Watches Naruto vs Pain' concept.
I'm not very familiar with this specific 'isshin x karin lemon fanfiction'. However, generally in fanfiction, the 'x' usually indicates a romantic or pairing relationship. It might explore the relationship between Isshin and Karin in an interesting way. Maybe it has unique characterizations and plot developments centered around their relationship.
In lemon fanfiction, the relationship between Ichigo and Isshin can be quite complex. It often explores a more in - depth emotional bond that might not be fully explored in the original series. The fanfiction might show Isshin's paternal side in a different light, perhaps more protective or guiding towards Ichigo.
Another theme could be power transfer. Given Isshin's own powers and Ichigo's growth, fanfics might play with the idea of how Isshin could further help Ichigo develop his abilities. This could involve training sessions or even some kind of power - sharing scenario that goes beyond what we saw in the original series.
The fanfic allows for exploring different scenarios that might not be possible in the original series. For example, their relationship could be developed in a whole new way, like in a AU (alternate universe) setting. This gives the writer and the reader a chance to imagine different storylines for them. Also, the way their individual backstories can be intertwined in the fanfic makes it even more interesting.