Searching for an internship abroad

Hi everyone! I’m a Master’s student in Strategic and Organizational Management with a background in Marketing and Economics. I’m currently looking for a 3-month internship (remote or abroad with sponsorship if possible). If you’ve done something similar, I’d love to hear: How did you find the opportunity? Did the company offer visa sponsorship? Was it paid or unpaid? Any platforms or tips you'd recommend? Thanks a lot in advance for your help.