If you want to learn more about Catholic teaching on social issues, I would recommend two books:
First is the Compendium of the Social Doctrine of the Church which is published by the Pontifical Council for Justice and Peace. It gives the guidelines for social teaching, including political and economic issues. It also has a section concerning the dignity of the human person, which much of social teaching is based on.
The second book is An Introduction to Catholic Social Teaching, written by Rodger Charles, SJ. It is not as in depth as the Pontifical Council book, but it is a good introduction.
Now neither book may give you precise answers to questions that you might have. What they can give are the principles that must be followed to give a moral solution to a situation. The Church does not usually give solutions to situations. It normally just gives the principles because in any given situation there can be multiple solutions that fit, all of them can be good - it’s a matter of choosing one of them. Sometimes, it is in the choosing of a solution where there can be conflict between good people who are trying to do the right thing. Neither solution is bad, both will fix the problem, and both will have good and bad points. Having said that, as has already been said in this thread, there are certain actions, such as abortion or contraception, that can never be moral.