If you already pay yourself a sizable salary, have a look at my post here: Get higher returns on 2. pillar, employ yourself - #21 by Helix
It contains providers that give you very high allocation to stocks. I think Gemini also gave a rather high level of control.
I thought about binding all my second pillar money to a provider where I will get decent returns. That legally keeps it out of reach from other employers’ providers.