Question about Dell U2518d

An adapter or cable for USB-C to HDMI/VGA/display port.
Of course, complete adapters that also have USB, SD, etc... are also very practical. if you also want to connect USB sticks or similar.
Among Apple users, the Satechi brand is apparently very popular (https://www.digitec.ch/de...). But I'm not an Apple user/fan myself, so I can't offer any personal experience, only technical help :)
Hope it helps anyway.