Myself and some other community members have been working on a comprehensive strategy guide for RF1 speedruns. Check it out here:
https://docs.google.com/spreadsheets/d/13oltVIxSvUMg8enaRgNmNc7g5UPfyF4hZsuQHdywXxk/

Also, be sure to join us in Discord to chat about anything to do with RF speedrunning!
https://discord.gg/EpbU5xs