Aside from stocks and bonds, investing in real estate and commodities, like gold, can add diversity. They can reduce risk by not moving with stocks. But remember, their value can change a lot. So, it’s not guaranteed to be a steady ride.Other options include high-yield bonds and cash. These have their own roles in making your portfolio more varied. High-yield bonds can match stock market trends, making them not the best choice for true diversification. Cash, however, can keep your wealth safe in shaky economic times.