You can only obtain legitimate work from home positions from brick and mortar companies. You want to send your resume out to companies hiring for positions you are qualified for, but include in your resume that you have a home office and you wish to work remotely. Include how you have your home office set up and what equipment you already have in order for you to perform your job. These jobs are just going to advertised as jobs, they would not promote them as work at home because they would hear from too many unqualified people.
There are a couple of ways - everything else will be a scam.Medical Transcriptionist - visit local doctors offices and ask them if they need help.Each morning you pick up your work, and turn it in the next morning.Web designEngineering designThere are also companies that will allow you to do telemarketing/bill collecting over the phone - not sure on the info on those./
Some call centers may allow you to work from home. But most of the links that you see here will be scams.