SG Gold ETF as hedge/diversification

Planning to invest in SG Gold ETF as part of portfolio allocation.

Now i need to select 1 or 2 ETFs from the below,

1. SPDR Gold Shares ETF (O87.SI)
2. CNMC Goldmine Holdings (5TP.SI)
3. Wilton Resources Corporation (5F7.SI)
4. Anchor Resources (43E.SI)
5. Anchor Resources (A78.SI)

As a part of filtering, planning to look for the below details,

Fund Liquidity

Expense Ratio

Tracking Error

With holding tax rate

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Any idea where can i find the details for the above paramters corresponding to the ETF's any formula's. I am using google sheet, is there any data available in web, so that i can pull into my tracker.

Kindly help. thanks.