How hard is it to come up with a plan for it. We can all give you the plan, but will you stick to it? I'm very hypocritical in saying that because I bin shit all the time..
Create a Insta. Create a YouTube channel. Same names.
Create the social media.
Create a WP with domain and apply a similar theme to the one below.
https://demo.kallyas.net/music-artist/#contact
Find small artists who probably don't have a manager and ask them for permission to use their video, music on both Insta and YouTube.
If they agree explain you're a new website and how you are planning to build an audience. Praise their talent, love them like your own child and ask if they could write an article (proof-read it and give them confidence), answer some questions and get them to provide a childhood story that got them into the music in the first place. Who inspires them etc? Make them feel fucking loved. Like they're the most talented person in the world. Do this with as many artists as you can but don't fuck them off afterwards. You or they may need help in the future and you're building a contact list at the same time.
Build an authority website based on a bunch of artists talent and background inspirations etc.. then begin charging once you have an audience. This method I have just given you might get their best fans to enjoy other artists and latch on to your channel, website etc for the long-term not just for a day or so and go inactive. Also provides 2 or 3 different methods of monetisations.
I guess it's about the personal touch and building something bigger then just the Insta.
Oh btw I'm lazy otherwise I would do this but you're welcome