What are all the opening positions that (at some point) have the g pawn pushed to g4?

I want to know this because I want to know what positions the Grob can transition into for something I'm working on related to the Grob

just off of the top of my head, caro and french sometimes feature pawn pushes like g4, h4, f4. however those are much later in the game and impossible to transpose from the grob.

Grob is the best opening you #%$&#, blasphemy!!! 

1. G4 - the one and only 

I would never betray the grurch, I'm simply asking for Grob variations that have been named incorrectly

No joke the grob is the opening I have the worst record against. I suspect this wouldn't be the case if I faced it more often than 1 out of 500 games.

i like grob

contrary to what many say, the grob isn't actually that awful. Although at top level chess it's horrible, most don't know much theory, and a strong grob player can achieve a good position. 

I've been playing G4 in many English opening games, I think those are more likely to transpose from the Grob

There are probably thousands of such positions, if you include all the reasonably sound variations of the Sicilian that have a g2-g4 Pawn push.

The English can transpose to g4, when h3 is played to kick the bishop away with tempi.

The Grob is literally the only way White can lose by force on the first move. It’s the single worst opening in the game for White.

What about the Keres attack?:

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4!

the Keres attack is considered as very good for white, and has convinced many scheveningen players to change their move order to avoid g4

Some Czech Benoni and KID positions involve g4.