The most effective approach to advertising yourself as a therapist online is by using paid ads, mainly on Google Ads and Meta Ads. Google Ads is a pay-per-click (PPC) advertising platform that allows you to place ads across Google and its properties. It is effective in attracting clients actively searching for your services on this search engine. On the other hand, Meta Ads is an advertising platform for Instagram and Facebook, enabling you to engage with social media users quickly.