What to do if I am supposed to say Kaddish?
A function of saying Kaddish is sanctifying G-d’s name, which can also be achieved by learning a religious text expressly because of our loved one’s influence. Any religious text is appropriate. If you’re not sure where to begin, consider https://www.myjewishlearning.com. Or Rabbi Freedman’s Five in Five Parsha videos – https://www.youtube.com/channel/UCTeLi8yYrZ1cTjVhqWZvNmQ/video