Nitzavim sources

by aliyah

rishon (Devarim 29:9)

sheni (29:12), shlishi (29:15)

revii (30:1)

chamishi (30:7), shishi (30:11)

shevii (30:15), maftir

haftara (Yeshaya 61)

by perek

30

meforshim

Rashi, in English and Hebrew

Chizkuni

Shadal (here and here)

Mishtadel

Daat -- with Rashi, Ramban, Seforno, Ibn Ezra, Rashbam, Rabbenu Bachya, Midrash Rabba, Tanchuma+, Gilyonot

Gilyonot Nechama Leibovitz (Hebrew)

Tiferes Yehonasan from Rav Yonasan Eibeshitz

Toldos Yizchak Acharon, repeated from Rav Yonasan Eibeshutz (nothing on Nitzavim)

Chasdei Yehonasan

Divrei Yehonasan -- not until Vayelech

Even Shleimah -- from Rabbi Shlomo Zalman Ehrenreich

R' Saadia Gaon's Tafsir, Arabic translation of Torah (here and here)

Collected commentary of Saadia Gaon on Torah

Abarbanel

Torah Temimah

Kli Yakar

Zohar, with English translation (nothing on Nitzavim)

Baal Haturim

Baal Haturim (HaAruch)

Torat Hatur

Ibn Janach

Rabbenu Ephraim

Ibn Caspi

Ralbag

Dubno Maggid

Mendelssohn

Imrei Shafer, Rav Shlomo Kluger

Ateret Zekeinim

Mei Noach

Arugat HaBosem

Yalkut Perushim LaTorah

R' Yosef Bechor Shor

Meiri

Ibn Gabirol (nothing until end of Devarim)

Rabbenu Yonah

Rashbam (and here)

Seforno

Aderet Eliyahu (Gra)

Kol Eliyahu (Gra) -- nothing on Nitzavim

Mipninei Harambam -- nothing on sefer Devarim

Sefer Zikaron of Ritva -- nothing until Zot Habracha

Malbim

Chiddushei HaGriz

Noam Elimelech -- not until Haazinu

Michlal Yofi
Tzror Hamor
R' Eleazer miGermayza -- not until veZot haBeracha
Tanach with He'emek Davar -- Netziv
Nachalas Yaakov -- R' Yaakov ben Yaakov Moshe of Lissa
Divrei Emes -- Chozeh mi-Lublin -- no more on sefer Devarim
Ramchal
Or Hameir, R' Zev Wolf of Zhitomir
Alshich
Chida
Akedat Yitzchak
Melo HaOmer
Baalei Bris Avraham
Rav Chaim Vital
Beur and Meamer
Rav Yosef Karo

The following meforshim at JNUL. I've discovered that if you click on the icon to rotate sideways, change to only black and white, select only the portion which is text, it is eminently readable on paper.

Ralbag (394)

Chizkuni (153)

Baal HaTurim (63)

Rabbenu Bachya (272)

Abarbanel (401)

Shach (323)

Paneach Raza (84)

Yalkut Reuveni (pg 176)

Sefer Hachinuch (pg 178)

Aharon ben Yosef the Karaite (247)
Aharon ben Eliyahu the Karaite

rashi

Daat, Rashi In Hebrew (perek 29, 30)

Judaica Press Rashi in English and Hebrew

Mizrachi, Mizrachi (315, JNUL)

Gur Aryeh (Maharal of Prague) -- and here

Maharsha

Siftei Chachamim

Berliner's Beur on Rashi (here and here)

Commentary on Rashi by Yosef of Krasnitz

R' Yisrael Isserlin (on Rashi, 17, JNUL)

Two supercommentaries on Rashi, by Chasdai Almosnino and Yaakov Kneizel

Rav Natan ben Shishon Shapira Ashkenazi (16th century), (JNUL, pg 174)

Taz

Levush HaOrah

Mohar`al

Yeriot Shlomo (Maharshal)

Moda L'Bina (Wolf Heidenheim)

Dikdukei Rashi

Minchat Yehuda and Mekorei Rashi (in Mechokekei Yehuda)
Bartenura
Yosef Daas
Nachalas Yaakov
Medayek HaRashi
Prachei Rashi
Pi Habe'er on Mizrachi
Baalei HaTosafot al HaTorah
Also see Mikraos Gedolos above, which has Rashi with Sifsei Chachamim

ramban

Daat, Ramban in Hebrew (perek 29, 30)

R' Yitzchak Abohav's on Ramban (standalone and in a Tanach opposite Ramban)

Kesef Mezukak

Kanfei Nesharim

Rabbi Meir Abusaula (student of Rashba)

ibn ezra

Daat, Ibn Ezra in Hebrew (perek 29, 30)

Mechokekei Yehudah (Daat)

Mechokekei Yehudah (HebrewBooks)

Mavaser Ezra -- nothing on Nitzavim

R' Shmuel Motot (on Ibn Ezra, pg 51, JNUL)

Ibn Kaspi's supercommentary on Ibn Ezra, different from his commentary (nothing on Nitzavim) -- an h

Mekor Chaim, Ohel Yosef, Motot

Avi Ezer -- nothing on Nitzavim
Tzofnas Paneach
Ezra Lehavin
Perush al Ibn Ezra
Also see Mikraos Gedolos above, which has Ibn Ezra with Avi Ezer

targum

Targum Onkelos opposite Torah text

Targum Onkelos and Targum Pseudo-Yonatan in English

Shadal's Ohev Ger on Targum Onkelos
Berliner
Chalifot Semalot

Avnei Tzion -- two commentaries on Onkelos

Bei`urei Onkelos

Or Hatargum on Onkelos

Targum Yonatan

Commentary on Targum Yonatan and Targum Yerushalmi

Samaritan Targum

Septuagint 

Origen's Hexapla (JNUL)

Targum Shomroni
Samaritan Torah

masorah

Tanach with masoretic notes on the side

Commentary on the Masorah -- nothing on Nitzavim

Minchas Shai

Or Torah

Taamei Masoret -- nothing on Nitzavim

Masoret HaKeriah

Shiluv Hamasorot -- nothing on Nitzavim

Rama (but based on alphabet, not parsha) -- and here

Vetus Testamentum
CD Ginsburg
Minchat Kohen

midrash

Midrash Rabba at Daat (29, 30)

Midrash Tanchuma at Daat (29, 30)

Devarim Rabba, with commentaries

Midrash Tanchuma with commentary of Etz Yosef and Anaf Yosef

Commentary on Midrash Rabba by R' Naftali Hirtz b'R' Menachem

Matat-Kah on Midrash Rabba -- Nitzavim (and that's it)
Nefesh Yehonasan by Rav Yonasan Eibeshutz -- not until Valelech
Midrash Aggada (Buber) -- nothing until the end
Yalkut Shimoni
Sifrei, with commentary of the Gra

Tanach with Sifrei and HaTorah veHamitzvah
Sifrei with commentary of Meir Ayin
Midrash Lekach Tov

haftarah (Yeshayahu 61:10-63:9)

In a separate Mikraos Gedolos, with Targum, Rashi, Mahari Kara, Radak, Ibn Ezra, Metzudat David.

As a haftara in a chumash Devarim, with Malbim

Haftarah in Gutnick Edition

Rashis in English

Daat, which includes Yalkut Shimoni, Radak

Ibn Janach

Ibn Kaspi

Ahavas Yehonatan by Rav Yonasan Eibeshutz

Aharon ben Yosef the Karaite