Any place I can find information on early/medium size companies which are known to spend on B2B products?

Fair enough, I've finally been convinced after lots of failure in the B2C space that for an indie hacker whose primary skilset is programming, B2B is the best option to look into.

But I find myself facing similar issues in this space as well that I did earlier. Like how do I get a decent amount of traffic to my landing page in the first place to know whether my idea holds value?

And what product should I build? Should I specifically target a company or group of companies and look at their likely pain points and create a product for that? Or I should create more generic products/ When should I approach these companies or at all?

And another thing I've kind of concluded is that the sustainable way for me is to be more conservative in my approach and get some small wins before I get into a negative mindset about the whole process given my streak of failures. So basically the way I'm looking at it is if something like freelancing or a job is a 0% risk but 100% niched down form of earning money then I just want to go one level up rather than all the way, where the risk is probably 10% but the niche is a little wider. If this was my goal then what would be the right strategy to go about it?