I'm not Tynan, but might be able to help. There are multiple options based on your needs, all from the same brand, cause it is specialised in the lightest power banks for the amount of power packed in.

1. Nitecore NB10000v3 is the lightest 10k power bank (150g).
Has 2 typec, while v2 has 1c and 1a.

2. If you are fine with 6k and slower speeds - you can buy 6k battery, that is 88g.

3. If you need a wireless charger, aka magsafe (to charge toothbrush/trimmer on the go), the lightest one available is NW5000 with the weight of (120g) for 5k.

4. If you need 20k - you can buy 2x10k or NB20000. Weight will be the same.

As I've mentioned, all made from carbon fiber and lightest in the class. Hope this helps : )