Back in 2013, the Chinese government published a list of essentially all the characters that you might expect to encounter in electronic communication. The Table of General Standard Chinese Characters contains a list of these characters. This list is comprised of 8105 characters which are divided into 3 groups. The first group contains the most commonly / frequently used 3500 characters. The 2nd group contains 3000 still common but much less frequently used and the last group the remaining 1605 which are considered rare. Attached to this post are the list of these characters in hex values which you can copy paste in the Font Asset Creator using Unicode Range (Hex) option as seen below.