I respectfully disagree that there's no help available online. You just have to start reading. Two of my favorites to read are Mr. Money Mustache (generally geared for the FIRE crowd), and Bogleheads (in honor of John Bogle, the founder of Vanguard). Of course, I also read the Wall Street Journal daily, and other sites like Marketwatch, Barron's on occasion, and so forth. Most, if not all, of these sites have "investing for dummies" type sections, where you can read articles to learn more about stocks, bond, insurance, annuities, HSAs, estate planning, and so forth. I would start there, if I was looking to educate myself.
I will say, different sites have different styles--the Money Mustache people are more about spending as little as possible in order to retire as soon as possible. While that might not be your goal, you can learn a lot from their frugal ways. Similarly, the Bogleheads are more about keeping what you have (and many are high net worth individuals). While it's easy to get intimidated y people with 7- and 8-figure nest eggs, they have lots of great information to share. And a lot of the issues, such as gifting or leaving money to heirs, are valuable whether your estate is $10k or $10M. I also find both sites to be willing to help out beginning investors.