good guide/course to create videos?

I need a good guide/course on how to create videos. I am creating videos for my business and they work quiet good.

But I want to make them better, with better hooks, some new good tips… to be more viral

Practice makes a man perfect. Keep practicing daily use video effects, filters and sound effects to make your video more interesting and attractive. Try new software learn them, if you are using premier pro its a very good software, work more on it and learn more about it so that you can enhance your skills. If you are not using Adobe premier pro then i suggest you to learn this software from Youtube. I suggest you a youtube channel Gfx Mentor you can learn premier pro from this channel and If you are currently using premier pro then learn DaVinci Resolve. Its full course also available on this channel. DaVinci Resolve is a professional video editing software, it helps you to enhance your skills and make you a professional editer.

Difficult to offer comprehensive guides on the comments without going into some real depth. You can consider looking for online tutorials or guides for that sort of thing. Skillshare was useful for that when I needed it, it even included what tools to use. Haven't checked how that service is now so your mileage may vary. Youtubes ususally also have good How-to's for that sort of thing.

you mentioned you are already making videos and are quite good so I'm guessing you already have a good grasp of the editing side, my only suggestion is to look for competitors on YT, sort their best videos and copy their style, you don't have to invent the wheel always

Post this in the "hire a freelancer" section of BlackHatWorld; someone might be able to help you out there and provide you more detail on this.