I have a question about proxies. I do data analysis, and sometimes I need to change my IP to work around geographical restrictions. I've been told that you can use proxy servers to do this. But I don't really know which proxies are best for this kind of task. I've read that some proxies block quickly, while others can be slow. Can someone tell me which proxies are suitable for data analysis? I am especially interested in working with sites that are available only in certain countries, for example in the Netherlands. It is also important that the service is reliable and does not slow down the work.