One of the biggest problems that I have had with After Effects is to import cameras and locators to After Effects from other software like Maya. I'm sure this is easy in C4D, but I am just not using that application. There is an extension called Autodesk Maya Live Link that I have used over the past years, but it is pain to use and it doesn't seem to work with After Effects 2021.
Is there any other way that I can import a camera into After Effects? Maybe FBX, OBJ, JSON, or something else other than this crappy extension that doesn't work most of the time.
AE used to be able to import .ma files, but it used to be just as unreliable due to how Maya kept messing with transform and camera data. I suppose therefore the only real answer here is to make an intermediate app like SynthEyes part of your plan which can open many 3D formats and spit out data for compositing tools...
In my Maya days we rendered RPF sequences. Then when you have the rendered sequence inside your comp you can access the camera via Animation < Keyframe Assistant > RPF Camera Import. But not sure if that work these days. We use Cinema 4D since 2012.