The last thing consumers need is yet another website giving poor advice about financial issues. If you truly want to serve the public, use your site to encourage people to get such advice the only place they should; from a local advisor.
Well hopefully you already bought "insuranceguide.com" for starters. Otherwise someone else likely will since you've come up with a good name.

Go to a website like KingsDomains.com and find yourself a name that isn't taken. It has a search tool. And I've never seen cheaper domain prices than this company.
Use content from you insurance company brochures. It likley
has no copywrite.
If you have no idea what to put for content, you're going to have to hire people.
What type of advice do you want? Or are you asking someone to tell you how to do it ?