It’s very frequent that I recommend learning languages through YouTube videos on this account. I’ve already recommended some content creators, both in French and Italian, which are the languages I’m currently learning.
In case none of the suggestions I’ve made are of your liking, or you simply are learning some other language, I still want to leave a generic list of the type of people you could look for in the hopes of achieving fluency. This is intended for people who are self-taught and are just starting.
It’s important you look them up on YouTube. In my experience, short-form content is not very good for attention retention. besides, it's better when you stick to a limited group of people you could get familiarized with.
The first type of people you should look for, are vloggers. The advantage of said type of content is the fact that it tends to be repetitive, as the routines displayed go on loop video after video. Plus, you could get used to their personality, voice and accent, which could lead you to internalize aspects of the language better. It could also help you to amplify your views on cultural factors. Similarly, you could also go for podcasts.
The other type of content you should look for, is the one of magazines and journals. I suggest magazines because they are much more simplistic in their tone as their reach is generally more massive. For instance, you could look up Vogue (i.e. Vogue Italia, Vogue España, Vogue France, etc.), ELLE, Vanity Fair, Cosmopolitan, etc. These are aware of the international platform they hold, as well as how varied their audience tends to be, so they typically do simple content surrounding stuff like fashion, makeup, house-tours, among other things that are relatively basic to any language in order to hold a conversation. It goes without saying, that you should also read their articles to improve and expand your vocabulary.
The third type of content creator I'm about to suggest is a bit screwed up. That is, people who locate themselves in the true crime genre. The reason I suggest this, is because they touch upon the routines of people frequently. I know not everyone feels comfortable interacting with that kind of content, but not everything is about bloody murder. Don't knock it until you try it.