This could have been my post. I'm the trailing one too, and my husband travels so much for his job that I spent the first months alone with the kids and no work, in a country where I couldn't read my own post.
What helped me most, in the order it happened:
- volunteering two mornings a week at a community centre. It gave the week a shape, and I could use my English and my organising skills while my Dutch caught up
- telling everyone I met what I did before, not what I was doing now. It felt awkward, but people remember "project manager" much better than "looking for work"
- a language course during the day, where half the class were partners in exactly my position
One of the people at the community centre later told me about the job I have now. It took nine months in total.
To the partners who brought someone: ask about the other person's plans before the move is signed, not after. The job search was the one thing nobody in my husband's company thought about, and it was the thing that decided whether I was happy here.