Basically ANZ, NAB and Commsec each will lend 40% on ESG as part of a diversified portfolio(4 or more stocks). Commsec will do 30% on a stand-alone basis.
However I find ANZ better because it lends more on proven stocks(e.g. STO 80% and TAP 70%) thus allowing a gas diversity holding spread like STO/TAP/ESG.