USB-C chargers are used for all new equipment that are powered or charged via USB. If a USB charging cable is not included with the device, then you can find one in USB-C charging cables here.
For quick and efficient charging of your smart phone, tablet or similar, a USB-C charger with Power Deliver (PD) or Quick Charge (QC) can be advantageously chosen. The size of the charger must at least correspond to the charging power (Watt) the device is intended for, it does not matter if the USB charger has a higher power.