RAVPower USB-C Dual Charger
If you're on a tight budget because you just spend $1,000 on the iPhone Xs, this next one is for you.
Get a cheap USB Type-C cable, then buy the RAVPower USB Type-C dual car charger for $7 and you're all set. This charger (and a cheap cable) gets you fast charging under budget.
The RAVPower DualPort Type-C charger is exactly what most owners need. It has a regular USB port for friends, family, or your iPhone, and will charge all of those devices fairly quickly.
However, on the bottom is a USB Type-C port that delivers a full 3w of power, instead of only 2.4amps like the other port. This is where you'll want to plug in that iPhone X of yours. There's an LED indicator for fool-proof charging, and it has a nice compact design.