Joining Facebook Groups

Hi Coaches! I’ve heard coaches talk about the idea of joining FB groups and participating in the discussions as a way for people to get to know you as a life coach. I think the idea is not to join to sell but just to be part of the discussion with people you want to help. My question is what is the best way to join? Through a personal FB account or through a coaching business page.? Any insights you have would be greatly appreciated. Thanks!