Recommendation on finished standard high-rate e-bike battery pack

Hi everybody,

I have been scanning the internet for a standard (~10Ah) e-bike battery with an above normal (>20A) continuous discharge current. It seems that there are very few producers of finished packs with, e.g. Headways 38120 cells.

Anyone who can guide me to a reliable supplier with a god reputation?

All the best,

BosseB