Tokiniandy is a youtube channel that goes over all of the lessons from the genki textbooks. He breaks everything down and explains it in detail as well as offering additional helpful information.
He also has a website where he goes over all the practices from the textbook along with a ton of other resources. There’s even a little quiz for each chapter. The YouTube channel is free but the website I believe is about 10 bucks a month for everything.
I’m sure plenty of you guys already know about it as I actually found the channel because someone commented about it in this sub but it was a post from a few years ago, so for those who don’t know about this resource, you should check it out especially if you are using genki
https://www.tokiniandy.com/
https://youtube.com/@ToKiniAndy