I recommend the RavPower 61W GaN over Innergie. The Innergie is smaller, but it is 3x the cost and, in my experience, less reliable and less ergonomic.
I purchased the Innergie after a previous travel charger failed. Loved it at first, but started experiencing issues pretty quickly. The first issue I encountered was that the plug would fold in frequently while I was trying to plug into outlet. Over the course of a couple months, I started seeing more issues with the reliability of the charger as well. It never completely failed, but I would often have to play around with reversing the cable and the direction of the outlet side usb-c in order to get charging to start. This was a bit concerning to me given that complaint USB-C cables are completely bi-directional.
That is not smaller than an Atom PD1. The Atom is 1.61 x 1.37 x 1.50 in. This is 1.18 (x 1.18) x 2.36. The shorter dimensions don't matter because both approximate the outlet dimensions, but the Innergie will stick out nearly 50% further. Also, 88g vs. 59g. Not smaller by any reasonable definition.
As it happens, I have the Atom. Yes, it's true that it can barely keep up with my MBP while in use, but that's not how I use it. It's fantastic as a more convenient option overnight, or as a second charger for my phone, my Switch, etc. I already have a bigger four-port, and any single-port can only be an adjunct to that, so a single-port that can do 60W adds no value. I suspect people in situations similar to mine far outnumber those for whom a single 60W port would suffice.
I have both PD1 and RavPower 61w. Tried carrying just the PD1 for a while, but got caught twice with zero power and took ~15 mins before I could boot my MBP. If you use any heavy power apps (Chrome, xCode) it drains faster than it charges. Both are great for their size, but I'd recommend the RavPower for any laptop use cases; it's only a little bigger.
I just bought one of these a few days ago. It's small and light, definitely an improvement over most power bricks but it's only a little smaller than my wife's MacBook Air charger
I purchased the Innergie after a previous travel charger failed. Loved it at first, but started experiencing issues pretty quickly. The first issue I encountered was that the plug would fold in frequently while I was trying to plug into outlet. Over the course of a couple months, I started seeing more issues with the reliability of the charger as well. It never completely failed, but I would often have to play around with reversing the cable and the direction of the outlet side usb-c in order to get charging to start. This was a bit concerning to me given that complaint USB-C cables are completely bi-directional.