What do you play your games on?

My laptop isn't errr, as well equipped as the rest of you ahaha old Mac book air 2016 over here lol. I want to play elder scrolls online but I only have 128GB and it takes up so much space as you guys may already know. was thinking of maybe buying a external storage but idk, would it even work? im not really up for buying a new laptop tbh. ive played ESO on my laptop before (when I literally wiped everything and only downloaded it and left with like 10GB left) and it ran smoothly.