For people who will ask I should refer to wiki wiki sources are not good and I'm searching for High quality sourcee with x265 rip like QXR sources but for ongoing tv shows
Usually x264 rips are available faster than x265, due to slower encoding time for x265, so depends on how long you want to wait vs download time and HD space.
The sites that I see get x264 first, then x265 of the same shows some hours later.