Quote From emaa:
I will do👍🏻Is it normal to send emails to universities or proffersors working in my field to ask an advice or offer a volunteer job 🤔
Some people would see it abnormal but I see it differently. We all are human and this is human to human communication. What are going to lose? Professors might not reply/stop replying for potential PhD/Postdocs with no reason which I find "impolite". The worst that could happen is they ignore your email which will leave you with the same outcome if you do not send it :)