DigitalOcean is described as 'Cloud computing platform with Droplets for virtual servers, managed Kubernetes, spaces for storage, and managed databases aiming at developers and startups' and is a very popular Cloud Computing service in the online services category. There are more than 100 alternatives to DigitalOcean, not only websites but also apps for a variety of platforms, including SaaS, Linux, Windows and Self-Hosted apps. The best DigitalOcean alternative is Vultr. It's not free, so if you're looking for a free alternative, you could try Amazon Elastic Compute Cloud or Amazon Web Services. Other great sites and apps similar to DigitalOcean are Linode, DedicatedCore, Microsoft Azure and Scaleway.
Keeping it simple, and preserve your privacy by not collecting more personal information than needed. You can also pay with cryptocurrencies like Bitcoin and Monero.