Skip the keyword tool for now. Go and sit with your sales team for an hour instead.
Ask them what prospects ask on the first call. Ask which objection kills the most deals. Ask what they wish they had to send after a meeting, the thing they keep explaining over and over on Zoom. Write all of it down. Honestly, that list is half your strategy already.
Now sort those questions by where the buyer is. Some come from people who've only just noticed a problem. Some come from people comparing three vendors, and a few from someone who's basically ready to sign. You'll probably find your blog is full of early-stage stuff and has almost nothing for the last two groups. Most B2B companies are in the same boat, and it's the gap that hurts sales the most.
Then open the keyword tool. Find the searches behind each question, look at what's ranking, and be honest about whether you can beat it. Group related topics around a pillar page so Google gets a clear picture of what you know.
Two more things people skip. Decide how you'll measure success before you publish, not six months later. And don't promise yourself twelve posts a month if your experts can barely make time for four. Four good ones, every month, for a year, will beat any burst of enthusiasm.