I and my friends are thinking about doing a podcast on YouTube, but the main problem is that we want a clear audio and can’t use the different collar mic because that would be hectic to arrange those multiple audios with the video and it is the whole lot of work. So, if you have any solution about that please do tell.
You need a camera that can send and sync with SMPTE time-code, and a four track recorder that also has time-code syncing (you may be able to do this in a DAW). The time-code is embedded in the video and all audio tracks, allowing you to have coordinated playback. The tracks will still have to be mixed before publishing.
Thinking about it, and as Todd commented about simplicity, another option that doesn't require any mic setup is the current generation of cameras with high definition audio and multi-track recording built in, such as the "Zoom Q8". I'm not recommending that particular product, but as an example of the class. I have used a smaller version for filimg students for youtube, and the omni-directional setting on the mic picks up the whole room very well, and the products are audio based, unlike some cameras that have awful built in sound.
You don't have any control of the mix, so what you get is what you get, but may be fine for a pod cast, depending on the scope of the project.
You don't need anything complicated here; this is YouTube 101.
If you're recording audio separately from the video, start everything recording -- including the on-camera audio -- and clap your hands loudly in range of all the microphones, ideally equidistant from each of them.
That spike in audio can be used as a time marker in all the sources to line them up in post. There will be a slight delay from the mic(s) that were a bit farther away, but you should be able to sync them up close enough. Then, simply cut out the clap section from the finished product.