You should be able to get sponsored by YouTubers in Game Dev Tycoon.
It would be in the menu, and you would have 3 Youtubers you can pick a year, plus whoever you picked last year.
This feature will only be available from whichever year would equal year 2000 and beyond. Youtuber fanbases will become your fans, if they aren’t already. As you work with Youtubers more, they will get better, and get a higher fanbase, and won’t cost any higher than they did last year.
The first of the three will be a low-cost Youtuber who would have a low fanbase.
The second of three will be a mid-cost Youtuber who would have a mid-size fanbase.
The final of three will be a high-cost Youtuber with a high fanbase.
Of course, Youtube will have to have a parodied name, same with all the Youtubers shown. For the parodied Youtube name, may I suggest “StarToob”?