Where can I get Dominican Pesos?

Excuse me, could you please direct me to where I can obtain Dominican Pesos? I'm currently in need of the currency for my upcoming trip to the Dominican Republic and I'm unsure of the best place to exchange or acquire them. Is there a specific bank, currency exchange service, or even an ATM that you would recommend for this purpose? Additionally, are there any fees or commissions I should be aware of when making the exchange? Your guidance would be greatly appreciated.