If you have a natural love of writing, consider using those talents for a freelance writing or editing job.
If you're retired from a job that required any kind of technical expertise, look for organizations seeking technical writers and editors. They might need publications written or reviewed by someone with exactly your kind of expertise. Recruiters might also seek people who can write and edit professional resumes from home.
This kind of job will likely require a computer with reliable Internet access, as well as particular software, such as Microsoft Word. It will help if you can show you have writing and researching experience. Prepare writing samples that match the kind of work you want to do for potential clients.