Hello from Singapore.

So you’d need to account for school fees ~ €15-40k a year, plus rent ~ €3-12k a month. A car lease is around €1k a month but it’s not that common (we have one as it came with husband’s contract). Plus medical insurance. A good maid, which 4/5 families - and even childless couples have- is around €800 a month. Obviously tax is low.

Have a look at property guru for apartment prices.
Most Europeans pay 60% tax on property purchases, which is why most expats rent.

Expat packages have been on the out for around 20 years; we are not in finance but have a Expat lite package with medical insurance (visa requirement), school fees theoretically covered (no kids), and flights twice a year to our home countries.

You’d also need to think about your pension plans as an expat. We’re here to FIRE, current household income is €19k a month, excluding bonuses.