What markets can I trade with an online broker?

The most commonly traded markets by retail traders through an online broker are forex (currencies), stocks and cryptos. This is partly due to the leverage offered on these products that can allow a trader to place trades greater than they would without leverage. It is highly recommended to understand trading, leverage and the risks involved before opening a real trading account. Whilst leverage can increase profits, it can also increase losses. It is considered good to practice trading on a demo brokerage account to begin with.