There's a lot of stuff out there, but if you want to get a lot of good tips and don't mind a guy mixing Christian music, search on YT for this:
Recording Revolution.
Go to the videos, then go back to his earlier videos and find his "5 minutes to a better mix" series. He has 3. It's literally 31 5 minute tips, times 3. (start with the earliest first.)
The good thing about them is they're explained very simply and visually, and he's a great commentator.
Some of it you will know, some maybe not. But I often refer people to his series because they're extremely easy to understand, and they often apply no matter which genre is being used.
Of course, there are many other sources out there, but his is a good starting place.
__________________
|