As far as I know, no site is really "great" in this genre. Most of this type of content involves straight boys and was produced years ago when it was not easy to find models willing to do "more," as you suggest, especially with the age gap involved. Openly gay boys were few and far between and tended to be on the more feminine side, which didn't fit the genre that was showcasing the "boy next door." If Club 1821 got a reboot today, it would have access to an ample supply of masculine and athletic openly gay boys, and it would probably involve a lot more action. On the other hand, I'll always wonder what may have happened off-cam in Club 1821.
You may want to check out The Body Shoppe (older content, but very similar), Boy Gusher (same era), Eastboys (newer content, still not a lot happening, doesn't show the photographer), Slow Teasing Hand Jobs (similar, but guys are on the older side) or Carnal Plus (only vaguely similar, but lots of action). As I said, none of these sites is that great, but you may find content you like.