What is White Hat SEO and Grey Hat, and Which is Better?
White hat SEO is a technique that follows the Google algorithm, and it is regularly updated. Your websites must be good content and be niche and nonpromotional, and you need to familiarize your website with more search engines. If your websites get more traffic, then it is well and good. White Technique must be used for your websites to do brand promotion for your business. A grey hat is a mixture of white hat and black hat techniques. The grey hat is used like any keyword you need to stuffing but use it smartly as Google bots, not crawl it.

Which technique do We Need to be Followed Nowadays?
White Hat but now also used grey hat technique.