Q: 529 go through a broker or open a 529 account directly?

As per government official site https://www.investor.gov/introduction-investing/general-resources/news-a...

Many states have both direct-sold and broker-sold 529 education savings plans available. If you already have a financial professional or you want someone who will help you with the process, you may consider opening an account in a broker-sold 529 plan. But, keep in mind that broker-sold plans often have additional fees. If you prefer not to use the services of a broker or are generally comfortable making your own investment decisions, you should consider opening an account directly with the state sponsor or program manager.