I don't happen to know of any specific website, but if you check some of my old transcriptions somewhere on this website, I wrote out the acoustic D'Angelico part for As Long As I'm Singing which is a fairly close comparison to Freddie Green Count Basie Band style-swing, which has some 5th and 6th string 6th, m7th, dom7th, chords.
Also, I would recommend that ye look into perhaps purchasing something a jazz chord book or look into some of the back issues of something like Guitar One, as they had a couple of really good articles from earlier in this decade on Freddie Green-style comping.
Hope that is of some help to ye.
Capt. Jones