https://geonode.com/free-proxy-list
https://proxyscrape.com/free-proxy-list
https://openproxy.space/list
https://www.scraperapi.com
http://spys.one/en
http://www.freeproxylists.net
http://free-proxy.cz/en
https://www.sslproxies.org
https://www.proxy-list.download
Happy learning!