system
Given the following post, respond as if you're commenting on Reddit:
human
In which European countries are faculty well paid?

I'm a tenured prof in a STEM field at a major university in the US. I make around $130K per year plus summer salary. After taxes and benefits, that works out to about $8K per month on avg plus around $1.5K per month contributions to my retirement account.

I am well paid and like my job, but don't like living in the US and don't want my kids to grow up here.

I looked into jobs in Europe, but many countries seem to have much lower pay for faculty. I'm willing to take a lower salary to live in Europe, but not half of my current salary!

In which European countries could an STEM faculty (equiv to associate prof in US) expect to receive at least 6000 Euros per month after taxes?
gpt
If you manage to get a W3 professorship in Germany (its tough out there), you'll likely have something between 6k and 8k € (gross!) per month, and a 13th salary at the end of the year. This doesn't mean you'll get a net amount of at least 6k on your bank account (if you have 8k gross, its probably going to be around 5k net), BUT there are some perks:

-healthcare is 100% free (e.g., paid with a small amount out of your gross salary, and as you are a public servant, you are "privately" insured and get the best healthcare possible)

-you don't have to pay a single € into a retirement account (only if you want to). As you are a public servant, you'll automatically get ~70% of your last salary as a pension.

-many many other things as others mentioned (free college, free education, subsidized daycare, no guns, etc. etc. - this is for you to google).

Hence: you'll likely get less money on your bank account each month. Your quality of life will be at least the same, if not better. For further information, google "W3 professor Germany". Be prepared to learn some German, although English is commonly/increasingly used in the educational sector.