My client has 40k+ followers on LinkedIn, how long will it take to get brands collabs?

My client is new to Favikon. He does humor led marketing on Linkedin and as over 44k+ followers where almost of his posts performs well. But the thing is, he haven't done any brand collaborations before. His niche is humor and any type of content(healthcare, food, marriage, love, hiring, founders) performs well for him and his audience are a mix of founders, HRs, operators, job seekers. So is it worth trying favikon as a newbie for collabs?