Aukey makes a USB-C charger that’s about as small at the standard 5 watt iPhone charger but provides far more power. The Minima 18W PD Charger can quickly juice up an Apple phone or tablet, as well as other devices. With it, that old 5W charger can go in a drawer where it belongs.
It’s a low-cost option, plus I tested the product with an iPhone and an iPad so you can be sure you’re getting your money’s worth.