Buy a mutual fund for growth (more risk) or growth and income (more stable). While you’re there, link your account and set up automatic investments for whatever you can afford. Even $25/ month in a growth/income fund will grow to 14,000+ over 20 years. That’s 6000 invested. The secret ingredient is TIME.
I’ll say this about being taxed in a brokerage account (not a designated retirement account). When you buy a stock, you hope it will go up in value. If it does and you sell it, you owe capital gains tax on the profit. If you do this within one year (buy in March, sell in June) you’re taxed as ordinary income, which is higher than the long-term gain tax rate. If you buy a stock that pays a dividend to its shareholders, those payments are ordinary income. That’s why people advise a Roth IRA’s, to avoid having to pay those taxes.