Are you a working software engineer already? If so, you might want to wait until you know what you want to study before aimlessly pursuing a degree.

Also this is a pretty lazy post. More details than 'experienced dev' would be appreciated

If you must, do statistics, machine learning, or "data science". If you are already an experienced dev, a CS or Math degree is not going to give you anything that you dont already have.

Math and (theoretical) CS are pretty much the same — you will have a lot of mind expanding experiences and build up your theoretical toolset.

Are you an experienced dev who wants to get a BS degree?

Why do you want a degree? The main point of that seems to be immigration.

I've considered a degree because I'm not very good at algorithms and have next to no interest spending time doing this on my own.

That being said I've decided against it because, who cares? I'd rather build up my portfolio.

Do something multidisciplinary like GIS, you'll learn all the interesting geography bits as well as working with spatial data. It's an interesting field and the technology is becoming increasingly relevant.