If you're skinny and want to put on good lean mass, why not check your macros in what you're eating now, figure out how many calories you actually need to start bulking and work from there?
I find a lot of folks like yourself tend to go the supplements route first rather than tackling the above. And they are notoriously afraid of getting fat from eating fat?
By all means, creatine yourself up to the hilt. You'll see immediate weight increase because most if not all of that will be from the water retention which is a well known side effect. Happy days!