What might be easier than a whole separate Chinese tracker, Plex at least has a pretty robust feature where you can have it automatically find and download subtitles in whatever language you set. Only problem there is sometimes the timing is a little off with the actual video so the subs don't pop up at the right time, but you can change the offset with just a few clicks until it's right and then usually it's the same for every episode going forward.

If you're not using Plex or find it doesn't work so well for Chinese subs, can also try bazarr which does the same thing with subs but is a standalone software.

So with the above setup you can download the actual series from wherever and then it'll fetch Chinese subs for you and add them automatically. Otherwise for actual Chinese trackers try share.dmhy.org and mikanani.me for public trackers.

Feel free to shoot me an email(in my profile) if you need any advice or help setting anything up :)