Is there a proxy service with dynamic IP?

Question

proxy

Need a paid service to provide a proxy with dynamic IP addresses. Those. I access this service, and it returns the ip of some proxy to me, ideally each time different or not often repeated. But it should have a fast ping and be guaranteed to return a working proxy.
And it would be nice to choose a proxy country. The frequency of requests is once every 5-10-15 minutes, i.e. infrequently.