There is a tag on some Github issues "good first bug" that should be a good star...

jankassens on April 8, 2016 | parent | context | favorite | on: React v15.0

There is a tag on some Github issues "good first bug" that should be a good start.

I think a lot of the core folks also hang out on IRC at #reactjs on freenode.

ConAntonakos on April 9, 2016 [–]

I think they're on Discord now on the Reactiflux server.