For me, it was 7 months between the end of my PhD and my postdoc.
Look at jobsites/ Science Job / Nature Jobs has been known to work. And I did get one such job offer (which I turned down) by going down that route.The job I did take up was obtained by talking to my PhD supervisor, who recommended me to a colleague of his who was working in the same field.
Talk to your PhD supervisor. Ask him if he knows someone of knows someone who has a position opening.
Ask your PhD supervisor about his past PhD students and where they might have gone. Go contact them and ask if they know of a job.
Talk to the collaborators of your lab. Ask if your supervisor can help with an introduction if you don't already know them.
Go to your uni career office. Ask for a list of alumni for your school/department.
Even talk to that sales rep that keep coming buy to sell stuff to your lab. The company needs somebody to test the stuff that they make.
Be aware that 85% of all jobs are in industry.
Also there are research positions in the government, including in the military.
May your PCR products be long, your protocols short and your boss on holiday