Pick a channel which suits you, subscribe and stick to it watching its videos. In youtube, there are options as watching with subtitles. So, if there will be new phrases you can get them from the subtitle and enlarge your vocabulary. By picking up new phrases you also boost your Speaking.

Below I've collected some news and science channels.

Enjoy!

Brainy Dose brings you high quality informational and educational videos.

This channel features many different topics that range from health and wellness to love and relationships, psychology, self-improvement, motivation, interesting facts, and much more.

Easy English channel contains lots of conversations on various topics that will help you improve your English vocabulary and spoken English. You can also learn grammar in a fun way, easy to understand by almost anyone! The English level used in our videos ranges from beginner to upper-intermediate. Learn English in an entertaining way!

 

Crash Course has educational videos on a wide variety of subjects, including organic chemistry, literature, world history, biology, philosophy, theater, ecology, and many more!

Kurzgesagt is another science channel but instead of boring science videos here you will find them fascinating.

subscribe to any of these channels