What is the best way to provide GGG

For example a huge QOL would be adding a mass map reroll tool.
The way it'd work would be - you load up ~25 maps into it, apply alch to all, with 1 click, reroll ones that go against your build based on the filter you set (no phys/elemental damage reflect/no 400% monster crit damage, etc.) with an option to shuffle queue load all of the rolled maps into map device.