grammar - Whom, who or that?

Which is the correct sentence?

Match me only with people I kissed or people that I am
following

or

Match me only with people I kissed or people who I am
following

or

Match me only with people I kissed or people whom I am
following

Or are they all wrong?

Answer

These are correct.

Match me only with people I kissed or people that I am following

Match me only with people I kissed or people whom I am following