https://openresearch-repository.anu.edu.au/html/1885/42048/index.html

This website is filled with research by Dr Rafe De Crespigny. The leading researcher and historian of the 3K period in the West.

http://kongming.net/novel/bios/type.php

http://xuesanguo.tumblr.com

These are where you may find SanGuoZhi biographies. These are historical.

Apart from the Zi Zhi Tong Jian translated by Dr Rafe De Crespigny avaliable in the first link,

http://the-scholars.com/viewtopic.php?f=23&t=22087

Here you all may find the continuation of the Zi Zhi Tong Jian where Dr Rafe De Crespigny left off made by Dr Achilles Fang.

http://the-scholars.com/viewtopic.php?f=23&t=24289

And this covers the remaining Zi Zhi Tong Jian of the 3K Era not done by Dr Rafe De Crespigny and Dr Achilles Fang.