To get free Bitcoin "gold", one just need to keep Bitcoins in exchange? Like for exemple did Kraken.com last time give Bitcoin Cash to all those who had Bitcoins? Relatively new in this world so don't know what happened in last fork. Or one need to keep them in particular bitcoin wallet to get free gold?
You should secure your btc with the wallet who's have a privatekey like electrum so that you can get your bitcoin gold but if you are looking for the past hardfork happening you can visit some good article site like cointelegraph and other active sites related unto that today.
Hardfork is little bit far away to be happen and you still have some few days to prepare with it and remember bring or grab some BTC so that you can get that crypto when the fork is happening.