I also recommend Anker as one of the "best" you can buy. Their Nano 20 watt is a good choice and not too expensive. They have a 30 watt now if you want to splurge and get slightly faster charging, but any of their many chargers are good. I have also bought a few Aukey which I have been happy with.

To be honest you can use almost any lightning cable you can find. The cost difference is going to be in the durability as in how long they will last or how much abuse they can handle.

Also they have these cool nerdy cables like this one which will tell you the power transfer. https://a.co/d/4w0x7vd