Simply visit and start testing your skills:
https://pwnable.kr/ 15
https://hack.me/ 6
https://ctflearn.com/ 3
https://google-gruyere.appspot.com/ 1
https://www.root-me.org/en/ 2
https://www.hackthebox.eu/
https://www.hacking-lab.com/ 2
http://www.gameofhacks.com/
https://overthewire.org/ 1
https://microcorruption.com/ 1
https://xss-game.appspot.com/?utm_source…dium=email 1
https://www.hackthissite.org/pages/index/index.php 1
https://crackmes.one/
https://pentest.training/ 2
https://www.hellboundhackers.org/
http://hax.tor.hu/ 1
https://thisislegal.com/ 2
https://tryhackme.com/ 3
https://www.vulnhub.com/ 2
Happy learning!