What service is the monkey icon for?
I have used these more popular ones:
GitHub: I don't get the popularity of GitHub outside of open source projects since I've usually looked for private repos. It has a good interface. I just wouldn't pay for the private repos if I can get them with the below services.
BitBucket: I like their service. Free repositories and backed by a company that's been around for a while and offers other development services. Not the best UI. The UI is kind of slow but overall easy to understand and navigate.
VisualStudio (VSTS): Also free private repos. Pretty good features, but I find the interface and features to be overkill for me. I've used their CI/CD service with success. UI is sort of what you might expect from Microsoft. They are rolling out a new UI that might be better.
GitLab: Also free private repos. I tried out the CI/CD service and it was easy to set up and worked well. The interface is also the most responsive out of all of these in my opinion.
I think that if I were starting from scratch and wanted hosted private repos I would go with GitLab first then BitBucket or VSTS then GitHub.