I have a flimsy easel, but its only good for little things, since it's not wide enough at the top, nor low enough for 4, 5 or 6 foot canvases.
My ex had left two dressers in the room that we had found on the street over the years (this was his office). I was going to install hooks on the back of them, but then it occured to me, how a dresser, is just an Easel in disguise!!!
I stacked the two dressers and opened the bottom drawer. Finished. Pick a Drawer, open it, Perfect easel. Just tie the canvas around the back and you are good to go with any large size you want, any height you want!. I have worked 6x3' and 4' works like a dream. The lip on the drawer keeps the canvas from slipping too.
If you have a smaller canvas, just get a couple sticks of wood, and slip them in the area between the two dressers, of cut them off and put them on an angle in the drawer. As a bonus you can store all your supplies in the drawers and it's a whole studio.
Some plastic bags, or a tarp will protect your dressers if you want to save them for other things.