I found these channels useful after going though the Rocket course and starting on revision.
Learn German with Anja
https://www.youtube.com/channel/UCZwegPHTG4gvnR0WLzaq5OQ
A very lively and animated presenter who talks about life in Germany and her travels, also have quite a few lessons on confusing bits of grammar.
Learn German with Jenny
https://www.youtube.com/channel/UCZwegPHTG4gvnR0WLzaq5OQ
A rather more serious presenter with a tendency to read out lists but lots of useful explanations about usage and grammar.
Learn German with Anja
https://www.youtube.com/channel/UCZwegPHTG4gvnR0WLzaq5OQ
A very lively and animated presenter who talks about life in Germany and her travels, also have quite a few lessons on confusing bits of grammar.
Learn German with Jenny
https://www.youtube.com/channel/UCZwegPHTG4gvnR0WLzaq5OQ
A rather more serious presenter with a tendency to read out lists but lots of useful explanations about usage and grammar.