I don't really go with any particular tutorial.....I follow a lot of photographers on Instagram and I take screenshots of images I like and add them to my collection of poses....I then make small adjustments from there. There is a tutorial by Alexander Talyuka - How to teach a client to pose in 10 minutes that I enjoyed even though I had no idea what he was saying.....but his work is excellent. There is also a section in Elizabeth Wiseman Proedu Tutorial on posing thats really good. Lindsay Adler is quite an expert as is Sue Bryce....I just think they are too microscopic with posing......I like people to look natural.