The best way to find a training group for a Turn is to wait until Sunday. There are many people out there who'll complete Turn 1 and Turn 2 and want to give Turn 4 a try, but don't have any experience. Create a group saying "Training for Turn 4, newbies welcome." and figure the Turn out together. They reset the next day, so there's no worry.
Same for anyone who wants to try Turn 1, or any Turn for that matter (I see plenty of training runs for Turn 5 on Saturdays and Sundays).
I love when people complain about players asking for experience, which shuts them out because they don't have any. Reminds me of people who complain about employers only wanting people with job experience who aren't willing to go do volunteer work for experience...
It's easy to get experience in anything. Stop bitching for no reason.