Generally LGBI, but I'm only part way through, comments so far below, will go further when I have time.
What about SCE_C_USERLITERAL its a type of string.
Also SCE_RB_STRING_QR and SCE_RB_STRING_QW
What about REGEX types, they are usually a type of string, particularly SCE_C_REGEX but there are also SCE_HJ_REGEX, SCE_HJA_REGEX, SCE_PL_REGEX.