I have a 100wH Goal Zero (sherpa 100 I think it's called), I like it a lot. With this and a 28w solar panel, it keeps my iPad pro charged for a week of camping and reading. They just came out with a new version of it that looks thinner and lighter, and also has a USB-c that should charge my iPad pro quicker. If I don't get it for christmas I'll get it for myself.
100 watt-hours is the maximum the TSA allows in carry-on luggage. The "10k" ones you're talking about are milliamp-hour (kilo-milliamps? just say 10 amps), multiply by the nominal battery voltage of 3.8 and that's about 38 watt-hours.