Saving options for baby

I was setting up a savings account for my baby, and the application asked if I wanted myself or him as the primary account holder and mentioned the account holder would be taxed on interest (which I didn't even know was a thing). So I tried googling to figure out what would be better and found stuff about trusts, 529, brokerage accounts, and certificate of deposits. So now I'm confused af and I'm hoping there's someone who understands these things that can give me an idea of the pros and cons of each and why one might be better than another.

More info:

I don't have a lot to put aside now, but my maternity leave is almost over so I was planning on putting $20 a week aside for him, more when I can. Right now, there are 2 options he has to go to college free and I want him to be able to use the money for whatever he needs, not just college, so I'm less interested in the 529.