For the best immediate stability, look towards either Seraphs or Fabiano.
I haven't looked much at the White Lotus source, but I'm aware that it disables the current Ping/Pong packet loop as it's rather inefficient and tends to run false positives on high-load situations. (which means less disconnects in theory)
Of course, if you are looking for stability above any of the pre-shared sources, just about any source will work with optimizations and tolerance changes.