I've been resource gathering for YEARS so now I am going to share my dragons hoard
Floorplanner. Design and furnish a house for you to use for having a consistent background in your comic or anything! Free, you need an account, easy to use, and you can save multiple houses.
Comparing Heights. Input the heights of characters to see what the different is between them. Great for keeping consistency. Free.
Magma. Draw online with friends in real time. Great for practice or hanging out. Free, paid plan available, account preferred.
Smithsonian Open Access. Loads of free images. Free.
SketchDaily. Lots of pose references, massive library, is set on a timer so you can practice quick figure drawing. Free.
SculptGL. A sculpting tool which I am yet to master, but you should be able to make whatever 3d object you like with it. free.
Pexels. Free stock images. And the search engine is actually pretty good at pulling up what you want.
Figurosity. Great pose references, diverse body types, lots of "how to draw" videos directly on the site, the models are 3d and you can rotate the angle, but you can't make custom poses or edit body proportions. Free, account option, paid plans available.
Line of Action. More drawing references, this one also has a focus on expressions, hands/feet, animals, landscapes. Free.
Animal Photo. You pose a 3d skull model and select an animal species, and they give you a bunch of photo references for that animal at that angle. Super handy. Free.
Height Weight Chart. You ever see an OC listed as having a certain weight but then they look Wildly different than the number suggests? Well here's a site to avoid that! It shows real people at different weights and heights to give you a better idea of what these abstract numbers all look like. Free to use.
Y'know, if a formerly well-behaved straight A student suddenly starts almost not passing their classes and crying all the time and getting into trouble, maybe the default conclusion from every authority figure should not be that they are lazy and simply need to pull themselves together. Maybe instead you should give them stimulants or HRT or let them kill their parents and see if one of those three things resolves the issue.
Pro-writing tip: if your story doesn't need a number, don't put a fucking number in it.
Nothing, I mean nothing, activates reader pedantry like a number.
I have seen it a thousand times in writing workshops. People just can't resist nitpicking a number. For example, "This scifi story takes place 200 years in the future and they have faster than light travel because it's plot convenient," will immediately drag every armchair scientist out of the woodwork to say why there's no way that technology would exist in only 200 years.
Dates, ages, math, spans of time, I don't know what it is but the second a specific number shows up, your reader is thinking, and they're thinking critically but it's about whether that information is correct. They are now doing the math and have gone off drawing conclusions and getting distracted from your story or worse, putting it down entirely because umm, that sword could not have existed in that Medieval year, or this character couldn't be this old because it means they were an infant when this other story event happened that they're supposed to know about, or these two events now overlap in the timeline, or... etc etc etc.
Unless you are 1000% certain that a specific number is adding to your narrative, and you know rock-solid, backwards and forwards that the information attached to that number is correct and consistent throughout the entire story, do yourself a favor, and don't bring that evil down upon your head.
Until you realize you’re watching Naruto to see Might Guy and Rock Lee, your life will be incomplete and I will die on this hill. They are the superior gentlemen.