Looking for data sources for binance exchange or similar, 5+ years of <= 1min data with low gaps would be great.
Yes , had subscription and stock api implementation to test it while ago, but atm for crypto would rather get data in with long readable format based files, without working on apis.
Sierra Charts probably has 3-4 years of Bitmex data. They don't have much Binance data though. And what about contacting that exchanges directly, it wouldn't surprise me if they offer it for free, it's in their interests to do so.