What kind of content and socials matter the most

It seems like you are focusing on short-form content for your B2B and consumer marketing efforts, which can be effective in grabbing your audience's attention and increasing engagement. Using LinkedIn and Product Hunt for B2B marketing can be effective, as they are professional networks where you can reach decision-makers and industry experts. Twitter can also be useful for B2B marketing, especially for engaging with thought leaders and participating in industry conversations. For consumer marketing, using Instagram Reels, TikTok, and YouTube Shorts can be an excellent way to reach younger audiences who prefer short-form video content. These platforms also offer robust targeting and advertising options to help you reach your desired audience. Overall, your selection of platforms seems like a good starting point. However, it's important to keep in mind your target audience and their preferred platforms to ensure that you are reaching them effectively.

I do agree with B2B Heavy being mostly LinkedIn and Product Hunt (and Indie Hackers I think). Twitter is indeed both. Consumer Heavy depending on the demographic: for 25> Instagram (no reels also) is very central, and for 35> Facebook is as well, more than TikTok.