You can create a data entry gig on Fiverr and offer your services to clients who are looking for data entry work.
You can make money on Upwork by bidding on data entry projects posted by clients and completing the work to their satisfaction.
Similar to Upwork, you can bid on data entry projects posted by clients on Freelancer and get paid for completing the work.
You can find data entry jobs posted by remote companies on Remote.co and apply for the jobs that fit you
Similar to Remote.co, you can find remote data entry jobs posted by employers on FlexJobs and apply for the ones that match your skills.
You can complete small tasks, such as data entry and data processing, on Amazon Mechanical Turk and get paid for completing them.