So social media websites allow people to "follow" each other. There are some people who post answers that are of considerable quality and its sometimes hard to keep track when there is a particularly good answer, is there any thought at stack exchange to give people the ability to "follow" each other?
Yes, this has been brought up many times on MSO and you can read there all about why it won't be implemented. Basically, Stack Exchange is a Q&A site, not a social network. (For the details you may have to read through the comments in the linked question.)
I recommend getting or making a third party extension instead of asking Stackexchange to provide an additional feature. For example, I wanted to hide other peoples reputation and my own reputation when veiwing stackexchange/stackoverflow etc. and I solved this using a tampermonkey script. You might even ask someone to make you a script if you don't know how to make one, probably you could ask in stackoverflow or something. Enjoy!