Gemini: Available to users in all 50 U.S. states. Highly liquid exchange. Insures funds held in hot wallet. Strong security framework.

Coinbase: Large number of cryptocurrencies and trading pairs. Offers both beginner-friendly and advanced trading platforms. Highly liquid exchange.

Binance: Low non-instant and instant buy fees. Extremely large coin selection. Numerous extra services.

FTX: Perpetual swaps for 15 assets. Offers tradeable altcoin indices. 45+ leveraged tokens available.