The best way to target your competitors on social media is to create content that will appeal to their target audience.
If you can create content that is more appealing than the content your competitors are creating, you will be able to steal their audience and reach a larger group of potential customers.
Alternatively, you can target by using hashtags, keywords, pages, and profiles. You may also take inspiration from Facebook Ads Library.
You can also try to find influencers who may have a large following in the demographic that you're targeting. You can then try to contact these influencers and try to work out a partnership or collaboration.
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