If you want a fast reaction the you should go for twitter, but don't forget that a lot of fud comes from there as well, so choose only official channels from trusted sources. I don't think it will help you much in terms of trading though because the only trusted sources would probably be devs, but the market doesn't react that much to development news, so it you do you no good in terms of trading opportunities.
I think the best approach is to go through every source of information (twitter, youtube, exclusive BTC news sites, reddit), and then combine all those sources to try to find out what is true and what isn't.