I don't want to regurgitate for sats, but I would ask ChatGPT to recommend some crates you can look at. Ask it for crates that are more widely downloaded and start from there. Also, there is usually a Github repo called "awesome-<whatever>" for various languages and topics, where you should be able to find a starting point. Try to find crates that are actually in use for trading, not just toy examples.

I'm also learning Rust, slow going, but I enjoy it.