What brand is best will depend on the job you're trying to do. If you want to print something that looks amazing with no post-processing, Polylite from Polymaker is a great choice with a large range of colors and finishes. If you're printing something that's going to be sanded and painted, like cosplay armor, I would go with MatterHackers Build PLA. It's easy to sand, holds paint well and is cheaper the more you buy.