Sources, Campaigns, and Mediums would actually be perfect I think!
I know it’s probably being nitpicky, but it would definitely fall more in line with how each site is using their respective UTMs.
If they are in fact just using traditional media sources for their medium parameter, they’ll still know why it’s located there vs a client who is used to looking for medium and now sees media
But I know media is grammatically correct so I guess either works, I just know most analytics platforms I’ve used before just had traditional UTM category naming for cycling through them.
I was surprised to see Media, hadn’t seen that used before for analytics