Second PhD or postdoc and their effects on tenure track position I am going to finish my PhD in the Netherlands within one year. Ideally I would like to get a postdoc here. However, due to competition or other factors I might not find a postdoc position. Then, there are two options:

1- Searching for a postdoc outside of the Netherlands which is not the best option for me currently.

2- Doing a second PhD here.

I want to know if doing a second PhD makes it harder to get a tenure track position later.

Edit

I am asking about the effect of doing a second PhD after I finished my first PhD regardless if I extend it for some period of time or not. Will people see it as a failure? To me it does feel like failure!

One good point in the Netherlands is that PhD students are employed as research assistants. Thus, I think when I am able to search for postdocs in other countries it might not look as bad as I think.
Nobody will care how many Ph.D. do you have when they consider you for a tenure track position. What will matter is number and quality of your papers/conference presentations after your PhD. If you want to change a field of your studies then it makes sense to do a second PhD. But if not, then it is a waste of time. It makes sense to delay your PhD defence rather than go for a second degree and use this time to focus on research.