PhD is the garden of the questions. If you keep your mind and heart open, you will able to find all the answers to all the mysteries. Although a PhD student search for the universe, just to find his own. His soul always search for wisdom rather than the publications. Please bring in the magic back in PhD. Here is my contribution to help my fellow colleagues to search there PhD and lab partners.
https://euraxess.ec.europa.eu/
https://www.nature.com/naturejobs/science/jobs
https://jobs.sciencecareers.org/
https://www.wemakescholars.com/
https://www.eurosciencejobs.com/
https://www.daad.de/deutschland/promotion/en/
https://www.seek.co.nz/PHD-jobs
https://www.universityvacancies.com/
https://academicpositions.com/
