If you are running a one-man show then you should be focusing on one social media platform. For example for my website ReviewMyLink I am focusing on Reddit. I think that the majority of my audience are there. All I need to do is start a new community and be active on the website. Traffic will build up over time. Don't spread your effort all over the place. Focus on one platform and once you make it bring with you all the other platforms like for me I want to have a presence on Facebook and X. What about you? What is your business and what social platform are you focusing on?
It's like Alex Hormozi says if you're not making £1 million a year then it's "one product, one avatar, one channel." Reddit is a good choice for you because Google is basically in bed with Reddit. So you get a double whammy of Reddit traffic and Google traffic. For me it's YouTube. Just because it's the platform I grew up with and spent 99% of my teen years on.
Reddit's longstanding advice is: "It's perfectly fine to be a redditor with a website. It's not okay to be a website with a reddit account." There's a fine line when trying to drive traffic from Reddit. Once you cross it, you'll get shadowbanned or banned completely. I've never had any success with it.