User Fields for Album, Artist Reviews or Content

I’m finding many classic jazz collections of mine missing any write up or reviews. Wondering if there would be a way to allow links (maybe as a custom tag) to other sites such as Discogs or others for content.

Example - Complete Decca Studio Recordings of Louis Armstrong and the All Stars. Six discs, ROON finds the album but there is no additional content except for what I move out of a separate ARTWORK folder in Disc 1 so ROON can see it. Also needs addressing. Roon should see PDF’s anywhere in the folder.

But Discogs has content and there are other sites I’d like to link into the album for when I sit and listen. Thanks