Why not the Walther PPQ it has the same ergos but a slightly better trigger IMHO.
I have a PPQ M2 and I dry fired a VP9 right next to it. (I am an HK fan, I have an HK 45, an HK 45t, and a P30, but I still preferred the PPQ.) Feels like damn near the same gun, but the trigger is better on the PPQ for me. The PPQ has a smoother trigger with a crisper feel. The HK did have a shorter reset though.
I was in disbelief how inexpensive the VP9 was in comparison to other HK offerings.