Kedoshim sources

by aliyah
rishon (19:1)
sheni (19:15)
shelishi (19:23)
revii (19:33)
chamishi (20:1)
shishi (20:8)
shevii (20:23)
maftir (20:25)
haftara (Amos 9:7)
haftara, according to Sefardim, Italians (Yechezkel 20)

by perek
perek 19 ; perek 20

meforshim
Judaica Press Rashi in English
Shadal (and here)
Mishtadel
Daat -- with Rashi, Ramban, Seforno, Ibn Ezra, Rashbam, Rabbenu Bachya, Midrash Rabba, Tanchuma+, Lekach Tov, Yalkut Shimoni, Gilyonot.
Gilyonot Nechama Leibovitz (Hebrew)
Tiferes Yehonasan from Rav Yonasan Eibeshitz
Chasdei Yehonasan -- not until Emor
Toldos Yitzchak Acharon, repeated from Rav Yonasan Eibeshitz
Even Shleimah -- from Rabbi Shlomo Zalman Ehrenreich
R' Saadia Gaon's Tafsir, Arabic translation of Torah (here and here)
Rashbam (and here)
Abarbanel
Vayikra Rabba, with commentaries
Torah Temimah
Kli Yakar
Zohar, with English translation
Baal Haturim
Baal Haturim (HaAruch)
Torat Hatur
Ibn Janach
Rabbenu Ephraim
Ibn Caspi
Ralbag
Dubno Maggid
Imrei Shafer, Rav Shlomo Kluger
Ateret Zekeinim
Mei Noach
Arugat HaBosem
Yalkut Perushim LaTorah
R' Yosef Bechor Shor
Meiri
Ibn Gabirol
Rabbenu Yonah
Seforno
Aderet Eliyahu (Gra)
Kol Eliyahu (Gra) -- not until Emor
Sefer Zikaron of Ritva -- not until Chukas
Malbim
Chiddushei HaGriz -- not until Bemidbar
Noam Elimelech
Michlal Yofi
Nesivot Hashalom

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 (pg 261)

Baal HaTurim (38)

Rabbenu Bachya (176)
Naftulei Elohim (upon Rabbenu Bachya) (27)

Chizkuni (100)

Abarbanel (257)

Shach (174)

Paneach Raza (57)

Yalkut Reuveni (pg 124)

Sefer Hachinuch (pg 67)

Aharon ben Yosef the Karaite (172)

rashi
Daat, Rashi In Hebrew (perek 19)
Judaica Press Rashi in English and Hebrew
Mizrachi, Mizrachi (on Rashi, 206)
Gur Aryeh (Maharal of Prague)
Maharsha
Siftei Chachamim
Berliner's Beur on Rashi
Commentary on Rashi by Yosef of Krasnitz
R' Yisrael Isserlin (on Rashi, 12)
Two supercommentaries on Rashi, by Chasdai Almosnino and Yaakov Kneizel
Rav Natan ben Shishon Shapira Ashkenazi (16th century), (JNUL, pg 103)
Taz -- not until Emor
Levush HaOrah
Mohar`al
Yeriot Shlomo (Maharshal)
Moda L'Bina (Wolf Heidenheim)
Dikdukei Rashi
Mekorei Rashi (in Mechokekei Yehuda)
Bartenura
Yosef Daas
Nachalas Yaakov
Also see Mikraos Gedolos above, which has Rashi with Sifsei Chachamim

ramban
Daat, Ramban in Hebrew (perek 19)
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 19)
Mechokekei Yehudah, (Daat)
Mechokekei Yehudah (HebrewBooks)
Mavaser Ezra
R' Shmuel Motot (on Ibn Ezra, pg 37)
Ibn Kaspi's supercommentary on Ibn Ezra, different from his commentary (here and here)
Mekor Chaim, Ohel Yosef, Motot
Avi Ezer
Tzofnas Paneach
Ezra Lehavin
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
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
Septuagint
Origen's Hexapla (JNUL)

masorah
Tanach with masoretic notes on the side
Commentary on the Masorah
Minchas Shai
Or Torah
Taamei Masoret
Masoret HaKeriah
Shiluv Hamasorot -- not until Emor
Masoret HaBrit HaGadol
Rama (but based on alphabet, not parsha)
Vetus Testamentum

midrash
Midrash Rabba at Daat (19)
Midrash Tanchuma at Daat (19)
Vayikra 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
Nefesh Yehonasan by Rav Yonasan Eibeshutz

haftarah (Amos 9:7-15)

In a separate Mikraos Gedolos, with Targum, Rashi, Radak, Ralbag, Minchat Shai, Metzudat David.

Rashis in English

Haftarah in Gutnick edition

Daat, with Ibn Ezra and Yalkut Shimoni

Aharon ben Yosef the Karaite (91)
Parshandata

alternate haftarah (Yechezkel 20:2-20, continuing into 22:1-16)
Haftarah in Gutnick Edition
Rashis in English
In a separate Mikraos Gedolos, with Targum, Rashi, Radak, Ralbag, Minchat Shai, Metzudat David.
Daat, with a link to Yalkut Shimoni, Gilyonot, and to Shadal (page 9 in PDF)
Aharon ben Yosef the Karaite
Radak (pg 181)

alternate haftara (Yechezkel 22:1)

In a separate Mikraos Gedolos, with Targum, Rashi, Radak, Ralbag, Minchat Shai, Metzudat David.
Haftarah in Gutnick edition

Rashis in English

Daat, with a link to Yalkut Shimoni, Gilyonot, and to Shadal (page 16 in PDF)

Aharon ben Yosef the Karaite (pg 83)

Radak (page 186)