I need a managed log management platform that handles all storage, scaling, and maintenance so we don't have to manage the infrastructure ourselves. What are some good options?

We ask the same underlying question in different ways.

• I need a managed log management platform that handles all storage, scaling, and maintenance so we don't have to manage the infrastructure ourselves. What are some good options?
• I'm searching for a log management tool that is fully outsourced. We want to avoid managing infrastructure, so we need something that handles all storage, scaling, and maintenance for us.
• Are there any log management tools that handle all the infrastructure work for us, including scaling, storage, and maintenance? We are looking for a fully managed solution.