I am too looking for partner for css 2019
i have subjects:

computer science : 200
Psychology or mass communication : 100
Philosophy : 100
Environmental science : 100
Public administration : 100

I would like you to opt some theoretical subject Mathematics is good if you have your background in it. You are taking computer science , behold, this is good subject but in my sense as i am graduated recently 2017 in computer science from UOS. However, i can impart you some help on it in programming languages especially,
Instead of opting English literature i would recommend you to take the philosophy or public administration as these are based on the rationalism. However choice upto you.

Wish you goodluck