jwfacts is almost a cornerstone site - its about Facts not art ~
jwsurvey.org has done some amazing stuff [as long a Lloyd Evans keeps his ego in check] In fact some other contributors there have written really good stuff.
My other favourite is "Beroean Pickets" meletivivlon.com/ which has great insights and the chat area is very decent and cordial - not at all as kamakazi as this site ..[lol ] Solid researchers and thoughtful commentaries.
I don't like HRH Robert King - eWatchman ....another egotist
Try "Make sure of all things" Perimeno .....http://perimeno.ca - not updated often though
A lot of YouTube stuff like 'Watchtower Examination"
This site will give you the entire Crisis of Conscience in Audio book form : youtube.com/playlist?list=PLF18BE9C02ED52CAA
[I have chopped the https and www on my links here to prevent hyperlinks forming and messing up the whole post so just persevere if you get it wrong or pm me ]