AirPods or Wireless Headphones
There is no headphone jack on the iPhone X, and even though there are Lighting EarPods and a dongle included, we recommend going wireless.
The AirPods are the best wireless headphones we've found for the iPhone because they connect automatically, sound very good, stay in our ears and you can even use just one at a time while on a call or listening to an audiobook so you can stay aware of your surroundings. Read our AirPods review for more on why we think they are worth buying. AirPods are $159 at Apple and Best Buy.
If you are looking for a more affordable option, the VAVA MOOV 28 bluetooth headphones are under $30 and offer good sound, nice design and they are sweat-proof.
You can check out our favorite wireless headphones for more options to listen to music on your iPhone X without a dongle or cord.