heres a thread/dump of links to some artistic reference sites !! ill mostly be including the ones i personally find helpful so ymmv

https://www.pexels.com/  - free stock photos
https://terawell.net/terawell/?lang=en - virtual pose doll
https://line-of-action.com/  - various photo refs
https://figurosity.com/  - extreme/active poses
https://www.sketchup.com/plans-and-pricing/sketchup-free - 3d building modeler
http://www.eggazyoutatsu.net/eng/traceTrainer.html - interesting sketch practice

http://posereference.tumblr.com  - awesome archive of poses
https://www.posespace.com/sample.aspx  - classical poses
https://app.justsketch.me/  - mobile friendly 3d model
https://characterdesignreferences.com/visual-library  - HUGE library to help design characters/get inspo
https://www.metmuseum.org/about-the-met/curatorial-departments/the-costume-institute - clothing/costume

https://www.nma.art/get-started/?gclid=EAIaIQobChMItcmT44GG7AIVtB-tBh1-ZQWTEAAYASAAEgIMbfD_BwE - holy shit, basically an online art university. costs money but less than tuition
https://www.google.com/url?sa=t&source=web&cd=&ved=2ahUKEwigmvWggobsAhVC_J4KHZYSAFcQFjAAegQICRAF&url=https%3A%2F%2Fm.youtube.com%2Fuser%2FNewMastersAcademy&usg=AOvVaw24_zZnNzI9g8xK3A3uLERu - The NMA free youtube channel
https://www.vogue.com/fashion-shows  - all vogue runway lineups archived