: A popular choice for US residents who already use it for stocks and want a cost-effective crypto option. 4. Bitcoin ATMs (BTMs)

: A strong choice if broad token access and advanced trading tools are desired. 2. Peer-to-Peer (P2P) Platforms

: Known for its deep liquidity and low 0.1% trading fees, making it a go-to for many global users.

For those who want the simplest "one-click" experience, existing financial apps often have Bitcoin features built-in.