Unless you have a lot of savings, it's hard to be eligible for a high-yield savings account from a traditional bank. Instead, you'll probably have to park your money in an online bank, like Ally or Synchrony. Since they don't have brick-and-mortar stores, they pass the money they save on rent to the consumers, with things like high-yield savings and by reimbursing users for ATM fees.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.