The former Chelsea man is being wooed by a host of teams in the EPL such as Norwich and Sheffield United.
“There are some options right now for Mikel Obi, and a few more we expect to see over the coming days,” a source told ESPN.
“Once all the options are on the table, he will make a decision.
“He will most likely make the decision before the Africa Cup of Nations finals, although that will depend on what is on the table.”
The Nigerian spent ten years at the Stamford Bridge before he moved to Chinese Super League team Tianjin TEDA in 2017 on a free transfer.