Just listing here the things I’ve found helpful and seconding some of them that have already been mentioned in other comments
Peter’s Twitter account
Good Judgement Project’s free resources and course
NunoSempere’s forecasting newsletter
alexrjl’s Youtube series
AI Impacts summary of Superforecasting if you don’t want to read the whole book
Ten Commandments for Aspiring Superforecasters
Thunk has a video on Youtube.
I also wrote a “how-to” guide just for the issue of picking a reference class here.
Just listing here the things I’ve found helpful and seconding some of them that have already been mentioned in other comments
Peter’s Twitter account
Good Judgement Project’s free resources and course
NunoSempere’s forecasting newsletter
alexrjl’s Youtube series
AI Impacts summary of Superforecasting if you don’t want to read the whole book
Ten Commandments for Aspiring Superforecasters
Thunk has a video on Youtube.
I also wrote a “how-to” guide just for the issue of picking a reference class here.