It really is hard to find guilds that do raids regularly and accept people with little experience. About the list on snowcrows, I would say only Raid Academy is regularly active on NA. And training groups fill very very quickly. Unless you want to camp discord and lfg and strain your eyes, I would suggest doing what I do : I start my own squad and clearly state that it's open to all and not come looking for a kill. That's about the only way you can get experience with the mechanics without getting shut down, kicked, insulted and so on. I expect I will start my own guild somewhere down the line. I'll keep you posted.