Best way to find shoutout and promotion buyers

Hi, currently I’m in the pet/dog niche and I would like to find shoutout buyers, or people who pay me to promote their product. Now I’m just searching pet/dog product stores on IG and offering them my service via DM.

Does anyone has more experience related to this?

Thanks in advance :grin:

I guess there are some websites where you can sign up and offer selling shoutouts.

Google search: Sell Shoutouts.