I can't recommend a name brand but the active ingredient I prefer for foil is Zinc Chloride... I use this quite diluted with dish soap, works fantastic and cleans up nicely being soap and the zinc chloride is water dissolvable.
The proportions are something you have to experiment with yourself but it is mostly soap, you don't need as much straight flux as you may think... The only place I run into sputtering is on the back side since the flux is sealed in the joint and boils without the ability to run out the other side once it's under pressure. But to minimize this use much less flux on the back
For copper foil, I use Nokorode, a paste flux that is readily available
in most hardware stores. Though it is a relatively mild zinc chloride
based flux, zinc chloride is still corrosive and I'd recommend good
ventilation, and prompt cleaning after finishing. I've used harsher
zinc chloride based fluxes in the past but don't see the benefit any more.