I thought I caught all this versions appearances, or perhaps I forgot. I'm OP btw lol.
I know alot of people who think venom could handle a sonic-less ironman which got me thinking of this fight. My assumption was he didn't have sonics as I ddint remember him using them but for the sake of a better fight let's say he can't use his sonics in this fight.
Only crimson dynamos I know of are Dimitri Bukharin (aka airstrike), Gennady Gavrilov (the guy who controlled that big dynamo armor via helmet), Anton Vanko and Boris (the guy I thought was in the pic with the winter guard who also let war machine go and got in trouble for it and had to flee then ended up working with red hulk) (please log in to view the image)
During the Winterguard mini and the one-shot there are three different Dynamos featured: Galina, Bukharin and Boris Vadim. The picture you posted is from the mini series cover, and by then Vadim is dead -his only two appearances are in She-Hulk and the Hulk and the Winter Guard one-shot, methinks-.
Edit: forgot about the War Machine Skrull incident.
The Dynamo's speciality is using high levels of electricity, so she should be able to produce heat by blasting thunderbolts at Venom unless he has some sort of resistance to that.
Brock has the experience edge and since Dynamo's more impressive abilities aren't relevant here I think he nets some wins. Galina should probably just try to stay out of his range and blast him.