You're welcome into cryptocurrency trading, as a new person towards the industry, need to go for relevant information towards the trading options, because they are difference types of trading, as a crypto trader, you have to choose and work towards it, and become a profession towards it. Hence I prefer using Binance Exchange to trade, which as a beginner, you have to mastar spots trading, before entry future trading. And also studies you're indicators by applying you're technical and fundamental analysis before entry any market. With these few points, it will help as a new crypto trader.
It would be advisable for him to avoid future trading, he may lose all of his wallet balance to people who have a better understanding of the market. Future trading often attracts gamblers who take bets and hope for favorable market conditions to gain profits, but when the opposite occurs, they suffer losses. It's difficult to imagine how someone without experience in spot trading would cope in such a situation.
I also use Binance, but I suggest he consider using TradingView as well Because binance has limited indicators, but with TradingView, he can access essential indicators through subscription that can guide him and provide valuable insights.