Water Purifiers

There is always a lot of talk in this subreddit and deservedly so about the contamination of the water from these mega corps that are beyond punishment, but in that vain what water purifiers do people use in their home. Have a whole home system or just one for the sink or even just a Brita pitcher for water that you drink? let me know what you have and what you recommend, I'm currently just rocking the Brita pitcher but not sure if that enough, thanks.