As discussed in this meta games (and aspect related) are on topic (to an extent). This is in an extension of our policy allowing story questions about visual novels with some gameplay elements. Touhou media exists outside of their respective games and in anime and manga subculture as well, so discussions come up often when discussing anime and manga.
On this site we try not to be too restrictive with question that are related to anime and manga subculture and try to encourage discussion of them along with related media, including derivative and anime-like media such as RWBY and Avatar: The Last Airbender.
As for the bounties question asking for resources to purchase anime music, it's a legitimate resource request as it's often times difficult to find legal sources to purchase anime music.
While there might not conclusive answer, users can give suggestions as to their favorite sites in an objective way, such as explaining what one site has to offer over another.
Resource list do exist in many Stack Exchanges as a means to better compile useful sites and service in an easily searchable and readable format
Here are some examples from other Stack Exchanges:
If you believe that an answer in a resource list is inadequate, inaccurate, or downright misleading feel free to make a comment to let other users know and downvote the answer accordingly.
If you feel up to the challenge, you can also try your hand at writing an answer. Good resource list can help a lot of people out by providing information in an easy to read for mat. Maintenance of these list can take some work, but bounties are there to encourage users to participate.