I had suggested a few, but here is a list here

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2716474273&searchtext=sensible+late+game+tech

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3166344450

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2506910606&searchtext=planetary+defense

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2017870391&searchtext=carrier+

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2819594196&searchtext=realistic+ships

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2027087815&searchtext=realistic+ships

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3182260120

DarkSpace also might be worth looking into.

I decided what for compatibility mods of my mods collection, I will only support NSC3 ones. But I am willing to teach, support and provide info on creating them by anyone willing to do so.