There may be something better, but I found something similar to what you are looking for in https://www.allmusic.com https://www.allmusic.com years ago. They g

There may be something better, but I found something similar to what you are looking for in https://www.allmusic.com https://www.allmusic.com years ago. They grouped music by genre (and sub-genres) and noted significant artists and albums by year within each genre. I went through the genres, working from the past to the present and ended up with a much broader experience in music because of it. They still seem to have most of those features. For example, they have a list of genres (https://www.allmusic.com/genres https://www.allmusic.com/genres). If you go into a genre, say blues, there are lists of significant albums and artists. You have to click on the "list view", but that exposes the year of the album or artist. At the very bottom of the genre page (almost hidden) are lists of sub genres that you can break out. Each of these has the same highlighted album and artist information. If you go into detail on an individual artist, say Robert Johnson, they have bio, discography, and related artist / influences (https://www.allmusic.com/artist/robert-johnson-mn0000832288/related https://www.allmusic.com/artist/robert-johnson-mn0000832288/...) information. All that said, the site does not seem as easy to use as I remember (but that could be my memory). But, hopefully, it is at least a start towards what you are looking for!