I collected a few reference and stock sites to share for artists in need, and those who may just need to get ideas and relieve themselves of an art block. Enjoy!
All Pose consists of 3D renders of many types categorized by poses and props. The photos used have faces much like Anime-style basis, but no expressions, making it a bit more challenging but open-ended.
This site uses 3D renders to show the muscle/anatomy of the poses. The site is categorized into the angles, gender, age, and pose. The pictures are quite clear and detailed, which is very useful to those who are striving to understand the workings of the body better for their drawing.
On this site you will find incredible stock. The photos are organized into types of poses and even props that are being used in said photos, which is great for beginning artists and those who have been drawing previously alike. Some folders include Instruments, Mirrors, Group, Romance/Couple, Hanging, Wings, Back, Perspective, Guns, and many more!
This particular artist is one that I’ve used quite a lot. Her stock is extremely helpful and consists of clothing reference, anatomy, expressions, lighting/shading references, and background stock. The page is very organized and searching through unhelpful stock is not a concern.
For those who need a definite, quick search, this site may not be the best. In terms of quality and quantity, this site has many different stock photos and artistic photography to use as reference. The search is simplified and the pictures that come up are at complete random. Personally, I would use this site more for practice and to get out of an art block.
The search is very easy to use and really helps you to find exactly what you are looking for in terms of stock or pose references. The site consists of photography, so, while this is helpful in the case of anatomy, hair and clothing will differ from model to model. This usually isn’t a problem, but like most stock photos, it could make the process of transferring the anatomy onto paper(or whatever medium) harder for those who are leaning more towards needing help with anatomy than with poses.