One possible plotline could be that the Todoroki children are kidnapped by a villain group who wants to use them against Endeavor. All Might then tracks them down and rescues them in a big showdown. Another plotline might be that the children are in danger within their own home due to Endeavor's past mistakes coming back to haunt them, and All Might intervenes to keep them safe.
The 'all might saves the todoroki children fanfic' probably focuses on the relationship between All Might and the Todoroki children. All Might is a symbol of hope in the My Hero Academia world. The Todoroki children, coming from a complex family background, might be in need of that hope. All Might could be saving them from physical harm, or perhaps from the emotional turmoil caused by their family situation. For example, if they're being targeted because of their father's actions, All Might would be there to protect them.
One possible plot could be that Dabi, who is a Todoroki, gets into a life - threatening situation during a battle against a powerful villain. All Might, being the symbol of peace, steps in to save him. This could lead to Dabi having a change of heart about heroes, especially since All Might represents everything he once despised but now sees the true selfless nature of heroism through his actions.
The character dynamic between All Might and Dabi could be very interesting. All Might is the paragon of heroism, while Dabi is a rather conflicted anti - hero/villain. All Might saving Dabi might start with a lot of distrust from Dabi's side. But as time passes, Dabi could start to respect All Might. For the Todoroki family, if they find out All Might saved Dabi, it could be a mixed bag of emotions. Shoto might be hopeful for his brother's change, while Endeavor could be skeptical.
Yes, there are. However, their availability might vary depending on your location and the specific comic publishers. Sometimes, limited editions or special releases of All Might comics can be harder to come by.