I am always open to enquries from potential postdocs, particularly those wishing to develop their own projects. Various sources of funding are available, all with their own particular rules, including Marie Curie fellowships, Japanese Society for the Promotion of Science (JSPS) postdocs, Newton fellowships, Human Frontiers in Science (HFS) awards, to name a few. Otherwise, open postdoctoral positions will normally be advertised on email lists, such as Evoldir.