Before things go much further, there are a few things that need to be either cleared up, or corrected.
1. Are you aiming to stop your education at the B.Sc level? You asked about getting a physics job with an undergraduate degree (highly unlikely). Is this STILL your aim? Because if it is, then the likelihood of that happening is extremely small. You may be able to teach high school with such a degree, but you will most likely not work at a practicing physicist, certainly not when there are a lot of PhDs looking for similar career and positions.
2. The "theoretical versus application" statement causes lots of warning bells in the sense that you may not have the proper idea of what physics is. Please note that even in fields of physics that are considered to be "applications", there ARE theoretical work being done! Fields such as condensed matter physics are often considered as "applications", but yet, look at Phil Anderson, Bob Laughlin, etc.. these are condensed matter theorists who have won Nobel Prizes!
I have written something about this a while back:
https://www.physicsforums.com/threads/i-want-to-do-theoretical-physics.765732/
Maybe what you prefer not to do is "experimental physics". That would be sad, because if you intend to stop at just the B.Sc degree, knowing some experimental skills and techniques make you much more "employable" than just being a "theorist".
Zz.