Before trading with real funds, it is a good idea to practice executing trades according to your strategy on the platform you will be trading with real funds later.
Most brokers understand this and therefore offer demo or paper trading accounts that you can open without depositing any money.
I know that the following brokers offer demo trading accounts:
Alternatively, you can also paper trade on tradingview.
I advise you to only use the demo trading account to get familiar with the trading platform. Do not trade too long on a demo account as it will teach you bad habits.
Once you are confident in executing your trades on the platform, you can move on to the next phase: Trading a small account!