After the fork you will need a wallet that supports BTG. It can be done using Coinomi Desktop wallet that allows you to import your private key. https ://www.coinomiwallet. org/ <-- SCAM
Which doesn't work for Electrum 2FA wallets... as they are MultiSig.Coinomi is ONLY useful if the address you have the coins in starts with a "1"... if your address starts with a "3" (either 2FA or MultiSig)... you CANNOT use Coinomi at this time (I believe they said they were working on MultiSig solutions?
)ALSO, this website appears to be a SCAM... being spammed by a bunch of newbies... the official site is www.coinomi.com and they have ONLY (officially) released a wallet for Android