Although having more money to play with makes investing simpler and less risky, anyone with a healthy savings account and enough income to set aside a few dollars each month can afford to invest.
When you buy a stock, you essentially become a shareholder (or owner) of that business — so whenever the company increases in value, your investment will also rise in price.
Stocks
Best for: Longer timeframes and higher risks for higher returns.
I’d recommend doing a mixture of all the above. It’s good personal finance practice to have a good amount of liquid cash at hand, and it’s safest to invest the rest of your funds across a range of assets or investment types.