This question is a follow-up to the "no-form-for-the-oral-law" question.
These are the systems of organizing the total Oral Law (as opposed to Mitzvos Classification systems) that are known to me:
By weekly Parashah (like Midrash Rabbah), Posuk by Posuk, all sayings around that Posuk
The 6 Sdarim and the 60 (or more) Tractates - Mishnah by Misnah.
Rambam's 14 books of Mishnah Torah, based on the 613 Mitzvos but covering practically all the issues discussed in the Talmud.
Books covering the 613 Mitzvahs only (Chinuch, Sma"G)
Partial law - only potentially observable Halochos in these times: the 4 Turim and Shu"A and Kitzurey Shu"A
Are there additional systems of organizing the Halochos of the Oral Law? Are there any contemporary research or proposals?