Belouve did a presentation on OSINT and TraceLabs. Here are some links relevant to that talk, or from the slide deck:
Join TraceLabs (You will likely need to register and join their Slack)
Hunchly Tool and Hunchly Training
IntelTechniques Menu (select items over on the left side). Also this site is where you can download Buscador OS
CherryTree (To take notes, is cross-platform) and Freeplane (mapping out connections)
I (Belouve) will probably keep this list updated as I get more resources dug up.