Its actually all I have been buying though I warn you that up until the ADR rebalance, it was only for investors and not traders due to liquidity issues.
Once the rebalance happens at 1 to 4 ADRs, LNGLY is the closest thing to actually trading ASX.LNG. LNGLF is simply a trading format without any actual support or ability to get any dividends in the future should they occur.