This CPP Concepts and Algo Trading from this Telegram group has lots of credibilities when you look at the sponsor like FTX. It is geared towards crypto trading for HFT level as well. This is something worth watching.
Cpp Concepts and Fireside Chat on Algorithmic Trading
Get some secret trading tech in these books https://quantlabs.net/books/NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!