Ask HN: If you could, how would you set up Airbnb's servers from scratch

I'm running an alternative to Airbnb for the tech and crypto community (www.cryptocribs.com). Yesterday, after being live for just two months, my servers already crashed. It turned out that with only about 500 listings, I already ran out of the 20GB storage I used for the setup. I currently run the site on a basic Digital Ocean droplet (1GB/1CPU, 20GB SSD/ 2TB Transfer). Turns out that every listing is already about 50MB and this adds up quickly. To solve the data storage problem, I now resized my droplet a bit and also bought a 100GB attached volume. I am planning to do a NGIX alias redirect for the image files to store any new files in the extra volume. But I feel like there must be a better way to do this