Hi, Mikey. Here're a few that offers online teaching. I don't have experience working with them, but they seem good and legit. Good luck!
https://t.vipkid.com.cn/?_version=2 (*Two friends used to work here. I don't think they had any problems.)
http://www.englishfirst.com/esl-jobs/esl-job-openings/ (*Online and in-person teaching)
http://www.eslcafe.com/jobs/china/ (*Online and in-person)