The best and most convenient way to exchange money in Marrakech is through ATMs, which are widely available throughout the city and offer competitive rates. For physical currency exchange, use official exchange bureaus (bureaux de change) found in major tourist areas like Jamaa el-Fna square and the Gueliz district; always compare rates before making a transaction. Avoid exchanging money at hotels or directly at the airport if possible, as their rates are typically less favorable.