In which elite daycare have you enrolled your little ones?
I'm not saying it's the optimal solution for the OP, but it would give him more leeway for the years of parental leave,...
With an average special repayment of €500/month, you can already deduct €90,000. That might include a few years without or with only a small special repayment, but also the years before the children or after parental leave + salary increase with higher special repayment.