FTX is one of the top cryptocurrency exchanges. This exchange has a great selection of tradable instruments, including crypto futures, spot crypto, derivatives for stocks, and more. That is for the international version, the US version of FTX does just feature spot crypto trading.
Gate.io is one of the top 10 most popular cryptocurrency exchanges. Both when it comes to spot trading and leveraged futures trading. It has over 80 million users globally and over 12 billion in daily trading volume. You can also trade ETFs for leveraged tokens here. These enables up to 5x leverage without risk of liquidation.
Bybit is a very popular cryptocurrency exchange platform and enables trading of a range of crypto instruments. This includes spot crypto, perpetual contracts, and inverse futures. They offer 100x leverage on Bitcoin and 50x and 25x on other cryptos.
Crypto.com is one of the overall most popular crypto websites with 10 million users around the world. They offer a wide range of crypto-related products, including a crypto exchange where you can trade with or without leverage. You can get up to 10x leverage with margin trading and up to 50x leverage with derivatives trading.
You can trade a wide range of crypotocurrencies here. I haven't found any other exchange or trading site with this huge of a selection. They offer up to 5x leverage for spot trading and a good selection of futures with up to 100x leverage.