I understand not all wallets planning to support it or yet undecided. My wallets are Jaxx and Bread having a few Satoshi in each.
no bitcoin wallet will support bitcoin gold fork because it is a completely different and separate fork although it seems to be forking from bitcoin but it is creating a 100% new altcoin.
it also has a premine which nobody in bitcoin world looks good upon these things.
if you want to claim it you will have to download their specific wallet from what they release in the future on their website and then import your bitcoin private keys in that to claim the new altcoins.
And now I am starting to feel that i can claim the upcoming fork this November. Although i was also wondering way back then, what might happen in the near future if so many forks and segwits will come, been thinking about it though.