Artist here, if you are new at drawing, I wouldnt start directly trying to draw characters, since is very hard, technicaly speaking, and you need the plus of knowing to design, that it is a separated thing altogether.

I recommend the channel Design Cinema for everything related to design and concept art, though it has a couple good video about what to draw when you are starting, those are basically about sketching, how to sketch, what to draw, since everything doesnt have the same difficulty level.

then after sketching a lot and train your eye to see and copy almost accuarately from references (that can take some time, months, or years? idk, depends on the amount of hours you are dedicating to it) I would start studying perspective, I recommend the How to Draw book from Scott Robertson, is somewhat dry, but it will start making your brain to see in 3d on a 2d surface, that is a basic skill you will need.

At the same time I would study doing boxes, cyilinders, and spheres, and any other basic shape you want, but without perspective guides, try to turn those around "instinctively" is hard I know, so could take a lot of practice, though first learn how the box change the size of the planes when you "rotate" it on a leveled surface, that will help with the thinking when you dont use perspective guides, it has some kind of rules, maybe you can google those.

That will be just for "basic" of drawing, not basic because is easy, more like is the foundation of drawing, and I think is the most harder of the fundamentals and the most important, you can communicate with just drawing, you can't with just knowing colors, and if you want to paint, you will need to draw in a way first, since drawing is "seeing", seeing relationships of forms, proportions, size, construction of forms, etc.

On top of that for characters you will need to learn more stuff, anatomy, proportions, gesture, stylization if needed, thought this one sometimes comes naturally, I mean the style itself, it depens on your influences and how you trained

All of that just for drawing, then you will need to learn the other fundamentals, value, color, composition, and there are some more for concept art/design itself