Any of the 2 part glazing compounds like Dolphin,Easy Sand,Metal Glaze,etc are what you want.
A quick swipe and minimal blocking but you will need to either do a light spot prime and block or a complete sealer coat before paint.Otherwise,you'll have ghosting thru your base.
I've found out the hard way,especally with 'glass that poly type fill primers just won't "go in the hole" on small pit's.Unless you just hammer the snot out of them,it just covers them over and when you block,Bingo,their back.
Another reason I like the dry guide powder.Mine are so small,I would likely not have even seen them but noticed several tiny black specks and after a closer inspection found them to be pit's and a lot more than I realized.
I've been fighting this glass hood scoop for awhile now "thinking" I'm "done" and then find more of these little bast.......