Which type of Internship should I do?

internships won't help anything, do full time 1 year atleast

Try to choose internships that are actually relevant to your interests like finance marketing consulting analytics etc the role and what u learn matter more than just having an internship certificate if possible go for a proper company or role where u can take up some real work and have something meaningful to talk about in interviews

tbh internships and full time doesnt matter if ur in still bba yh it helps u personally but in profile building its useless coz work ex is the worktime which is counted after completion of ur ug so yh if u want to get knowledge know the real spectrum in it u can go for it but in profile building it plays no role