Way to lineup audio?

[Evyshapiro]

Hi everyone, I'm wondering if there is a way, either with a stock or third-party plugin, to lineup multiple recordings on different tracks of the same audio event?

For example, if a performance was recorded through a mixing board and also through an iPhone recording, and I am trying to mix the audio, how can I perfectly line up the audio from the two sources? I am trying to just visually line it up and zoom super far into the grid, but I want it to be perfect, to ensure that there is absolutely no phasing.

Thanks in advance if you know any techniques or plugins for this.