If you're like me, you might have gotten lazy when it comes to practicing figure drawing. Sometimes it's difficult to find decent photos to reference, to do gestures or otherwise, so it's easy to do a couple drawings for practice then throw in the towel.
Well, there are a number of sites out there that I've come across over the years that help with that sort of thing. They pull stock images and such from different sources and give you a randomizer and timer and other features, or show anatomical structures that you can manipulate. Below I'll list some of the ones I've come across that might help you. Some of them have the same images, so you can probably just pick a couple favorites.Pose Maniacs
An oldie but goodie. I've used this site for ages and it's only gotten better. On it you'll find 3D models of poses that you can rotate around, and they all show the musculature. You can browse the poses, or use the random viewer, or the timed viewer that you can set yourself that randomizes the poses and lets you do quick gesture drawing.Artsy Poses
A relatively new tool, this one is similar to Pose Maniacs in that it lets you browse the images and use a timed drawing tool, however it uses real models and has some other options. No rotation available on this one, but it boasts over 2000 images. Give it a shot. There is nudity on this site though, so it's NSFW, but you can browse only clothed models if you want.Pixel Lovely
This one has less features than Artsy Poses, and it doesn't let you browse the images yourself, but it does have a "take a class" tool, and a random feature, so it's still worth checking out as it might have images the others don't. Also nudity here, but like Artsy Poses you can turn it off.Love Castle Drawing Script
This one probably has the least amount of features of the bunch, but it still randomizes for you and lets you set a duration. It has nudity as well, but you can toggle it.
Anyway, I hope you get some use out of these and they help you with your work, take care!