Power Bank, PD Charger and Cable Suggestions Please

Hi guys,

I was wondering if someone could be kind enough to point me in the right direction. I currently have a note 10+ and planning on buying a Xiaomi air laptop for work.

I would preferably would like to get a 20000mah power bank which could you easily charge these electronics fast and accompanying PD charger which is fast charge compatible with powerbank. Preferably a charger with a interchangeable overseas adaptor which I can take overseas.

Also, from reading few deal pages, E certified cable is necessary to achieve fast charge speeds.

Thanks in advance and would appreciate any kind of input. Budget is not a consideration and versatility and compatibility is the focus.