Hey Pulaski,
The video you linked is currently in position 7 on page 1 for the 'juice wrld type beat' keyword, in the United States. Right now it's showing 13.8K views, 80 likes, 1 dislike, and 44 comments, and it was published a day ago. They appear to have ranked the video by boosting it's metrics with smm services, and by stuffing the video description with keywords.
The views for example are seemingly artificially inflated. With nearly 14K views, the video should have significantly more likes, dislikes, and comments. It's likely that they tried to boost the likes to make things look more natural however had them drop as most providers are currently having issues successfully delivering such service. If you check the video description you'll see at the bottom in paragraph form there is a block of keywords.
Keyword stuffing is a terms of service violation and can get your video removed and channel suspended, so I would not recommend it. Over optimizing your metadata (title, description and tags specifically) is risky in 2018.
On the other hand, boosting your video by purchasing views, likes, etc. is a relatively safe method. These services alone can get your video to page 1 with minimal effort. There's more effort involved if you want to actually stay on page 1 for a long period of time. Do your own research and testing to figure out how to develop an effective ranking strategy.
If you end up giving it a try for yourself, start with a video that targets a low competition keyword then work your way up to more competitive keywords after you've had small scale successes. For long term results, I'd recommend using a combination of views (from both desktop and mobile devices, so you'll purchase 2 different views services), likes, dislikes, comments, favorites, and social shares (these services can be purchased from sellers in the 'Social Media' section of the marketplace). You can manually create and add your video to a handful of relevant playlists, as well as do some manual video promotion in Facebook groups, relevant Reddit subreddits, and forums to create further relevancy and get some organic traffic in there with the fake/purchased bullshit.
At this time it's very easy to rank on page 1 for any keyword. All you've gotta do is read the popular threads here on BHW regarding video ranking methods, techniques, and tricks. Put together your own strategy based on the info you've read. Start with videos that target low competition keywords, optimize strategy based on results, over time work toward targeting rankings for more competitive keywords, etc. Not much to it
Good luck!