need help deciding on a subfield for my PhD

[polsci1]

I'm currently an undergraduate political science student and I know I want to get a PhD after I graduate, but I'm still unsure about the subfield. I want to decide as soon as possible so that I can plan accordingly. I know I don't want to go into American politics or political philosophy. I really love formal theory and international relations, but I also like research methods in general and comparative politics. I just love political science as a whole and I don't think I can decide on just one subfield, let alone topic, to focus my work on. I also feel like formal theory/research methods might be a harder subfield to find a position in and I don't want to be unemployed forever. How did y'all decide on your subfield? And do you think it would be a red flag to the admissions if as an undergraduate I did research projects on different topics that interest me, rather than sticking to only a specific one? And lastly, if I were to decide on formal theory/research methods, I think I should add a minor or major in something related, would you recommend data science, mathematics, or computer science? If I were to go with international relations or comparative politics, should I still add a minor/major in one of these subjects? Just for context, right know I'm majoring in political science and military and strategic studies, and I also already completed a minor in Spanish. I know I've asked a lot of questions, but I just need advice. Thank you!

[A Dalek]

Minors aren't a thing at the graduate level. Most programs require you to select two fields, with one of them being your primary field, but they'd both be within the department.

I would advise against methods/formal theory as a primary field unless you study under a methodologist at a top 10 department. It's very marketable, but few programs have the capacity to seriously train someone as a methodologist.

It's okay to have multiple past projects but when you write your statements you want to focus on one subfield since many departments try to balance incoming cohorts by subfield. My advice would be to select either IR or Comparative as your primary field (given your interests) and methods/formal theory as your second field. 

[amit.kadam87]

It's great that you have diverse interests in political science! Consider focusing on International Relations or Comparative Politics as your primary field, and you can pursue formal theory or research methods as a secondary field. This balanced approach will enhance your marketability and allow you to explore your varied interests. Incorporating data science or quantitative methods could strengthen your skill set, no matter the subfield you choose.