Looking for supplies for a diy cover !

I’m not sure if this is the right place to ask so if there’s somewhere more suitable please let me know ! I’m wanting to make a notebook cover sort of like TC/paper republic/louise Carmen but more tailored to how I want it, but I can’t find any promising faux leather to use for it. I won’t use real leather so if I can’t find any fake leather I just won’t be able to make it, but I’ve had a look online and at Spotlight which is our big craft/fabric store in Australia, and everything is that really soft floppy kind of stuff. Im after something a lot more sturdy/thick that actually holds it’s shape, if anyone has made something similar or knows where I can get the kind of fake leather I’m after I’d be so grateful for recommendations Thank you !!