Where else can I buy USDT?

Could you please elaborate on where else, besides the platforms I'm currently aware of, can I purchase USDT? I'm seeking alternative options that might offer better rates or have a more user-friendly interface. Do you have any recommendations for reliable exchanges or brokers that offer USDT trading? Additionally, are there any specific factors I should consider when choosing a new platform for purchasing USDT, such as fees, security, or liquidity? Your guidance would be greatly appreciated.