Was just browsing a few tech sites and saw an Aukey powerbank getting a mention/comparison, nr 4 on the list if you fancy reading it.
I have 10,000mAh and 20,000Mah battery pack. They have both served me well over the past few months. I never feel worried about long trips while carrying one of them. They even fast charge my Pixel 3a over usb-C!
I’ve got a 20000 mAh from Aukey and I use it daily.