Mahmood Abu Maryam, Trying to make sense of it all... Answered 1 year ago

There are plenty of books written by Shia scholars who have explained in detail the evidence for all the matters in which the Shia have a different view compared to their Sunni brethren.

You can find many of them on this site. For instance you can start by exploring material listed under the following topic:

https://www.al-islam.org/tags/sunni-shia