Age, pension balance and retirement age goal?
Depending on canton, your income and wealth tax could be quite high. I’d be tempted to make large extra payments into pillar 2 pension over several years and get 40%+ of tax back as well as shelter from wealth tax.
With a house purchase on the cards, you have a way to get this out again in the future.
If you have a lot of pension capacity, you could easily put 200k+ each year into it and get 80k back in taxes each year for several years.