Best weapon type to do with heavy strike?

[DR. Nooooooooooooooo[B]]

Title. For some reason went straight to 2-handed mace but then thought that maybe 2h axes might be good to and gotten unsure. Playing Marudar berserker.

[Roxie]

not such thing as best type/class and so on in poe

[Courtney⚡]

Just depends on what you plan to do, if it's anything specific.
For example, the infrequent stun build would be best equipped with a mace, as maces inherently have stun duration & threshold related passives.

It also depends on what you have. If you have a good axe, but no mace to speak of, going with axes is obviously the better choice. The beauty of this game is its open diversity. You could go with a staff and have it work the same, if you wanted.

Items should also be taken into consideration. In terms of uniques, Atziri's Disfavour is a unique 2h axe which is very difficult to compete against.
Marohi Erqi is a popular mace, though typically used with something like Earthquake.
Hegemony's Era is a great staff, best suited for crit based builds.
Of course gg rares will usually be better, but they don't come cheap.

I will say that Heavy Strike isn't the greatest skill, though melee in general is in kind of a rough spot right now.