Are you going to write the blog yourself or are you planning to hire people to write the articles for you?
There are also softwares that can scrape dead articles from wayback machine and you can somewhat reuse these articles as long as they pass the plagiat check...
It needs a commitment to start a blogging website that if you do not have the passion to do it you might end up just giving up, have seen so many people like sell their blog websites over the years and not all of them make it...
So before you want to know how to start blogging, ask yourself and make the plan to do it, the blogging part is simple, you can go with blogger, wordpress, whatever, and start writing, and then you need to learn about SEO and backlinking, and probably outreaching to PBN or authority pages and get a backlink from them, and then manage social media to reach more audience, it is a lot of work. And the money is not promising until you figure out how to monetize, you can do ads, affiliate, referral, more or less.