How to Obtain Bitcoin Gold Without Using Coinomi I had some bitcoin on Electrum and some on Coinbase before the October fork. I assume I won't be able to claim Bitcoin gold for the amount that was on Coinbase. 

Since the fork, I've moved all my Bitcoin to a Ledger Nano S. When I try to use their Split Tool, it doesn't show a balance. I've seen a number of how-tos that entail using a Coinomi which only works on an Android device (of which I do not own). 

So my question it, how do I obtain my Bitcoin Gold now that my Bitcoin is on my Ledger Nano S?
Regarding Coinbase, they do not support Bitcoin Gold right now, but there is a possibility they will in the future.

The Nano Ledger split procedure is for if you had Bitcoin in their wallet during the fork.
You can't use it to claim Bitcoin Gold from an external private key.
So for the time being you can't claim Bitcoin Gold with your Ledger Nano.

However, you can use one of the wallets listed under Bitcoin Gold official webpage if you trust them.
Honestly, I wouldn't trust all the wallets they endorse since after the two major incidents that happened a while ago. 

Incident 1 - One of the wallet provider they endorsed turned out to be malicious.
Incident 2 - Their official wallet got compromised.

As of now I only deem Coinomi, Ledger and Trezor as the trustworthy wallets for BTG.