yes you can choose any current topics irrespective of your earlier subjects.

here I am listing some of the key points that you must keep in mind while ch

choose a topic that will enable you to read and understand the literature

ensure that the topic is manageable and that material is available

make a list of key words

be flexible

define your topic as a focused research question

research and read more about your topic

at the end formulate a thesis statement

Feel free to ask me in the comment box if you are having any further doubts

hope you find it helpful

Good Luck!