I am looking for a romance manga that has beautiful female lead. I would like to avoid series that have harem, ecchi, or hentai.

I have read:
16-sai, Shinkon Hajimemashita.
Akai Kami no Marure Ina
Animal Jungle
Aoi Kiseki
Banken Hero
Banken Toki Doki Ookami
Black Coffee (NAKANO Emiko)
Boku no Suki na Otokonoko
Boku wa Kiss de Uso wo Tsuku
Canaria Child
Dengeki Love Machine
Eien no Omoi wo Kimi ni
Erotic Horror Game Over (MIZUTANI Fuka)
Ghost wa Kiss o Kirau
Gokujou Twins
Hadashi de Bara o Fume
Hissatsu! Madonna Densetsu
Hitoribocchi no Ohime-sama
Hoshikusu to Hanayome
Houkago, Kimi to Koi o Shite.
Ibara no Koi
Inochi Mijikashi, Koi seyo Furyou Shounen!
Kaichou wa Maid-sama!
Kaichou, Suki tte Itte mo Ii desu ka?
Kanojo ga Café ni Kayou Wake
Kiken Mania
Koakuma no Jikku!
Kono Mama ja Dame Mitai desu
Magico (IWAMOTO Naoki)
Mahou Tsukai to Koi no Biyaku
Meirei, Kimi o Hanasanai
Mishounen Produce
Nobara no Hanayome
Ojou-sama no Gohoubi
Omoide Konpeitou
Ookamitachi no Tengoku
Ore no Subete ga Kimi no Mono
Otoko no ko ni Kusari
Otokonoko ni Toriko
Ouji-sama Sama no Jijou
P x P
Pump Up!
Purikyuu
Saiai Devil
Seiten ni Tsurugi wo Kazase
Sentimental Honey
Smash 1
Sonna Me de Minai de
Sumire Syrup
Yajuu Kanojo
Yokobou Strawberry
Yuuwaku Honey

Thank you! I also don't mind ongoing manga and oneshots, just as long as it has been updated within the year.

All completed series.
Emma Historical. Some people might describe Emma as plain, but she's been regarded to be quite beautiful by some of the male characters.
Hibi Chouchou Slice of life, school life.
Last Notes Supernatural, school life.

[m]Ano ko No, Toriko
[m]Love zipper
And anything to do with [a]Shiraishi Yuki
[m]Skip Beat
Mizutama Honey Boy (Girly guy, gentelman-ly beautiful girl)
Film Girl
Akuma to love song
Midnight Secretary (More like baby face, but still pretty)
Kimi ni todoke (Misunderstood as A Creepy girl, but actually cute)
Kyou, koi wo hajimemasu

A bit of "Webtoon" feeling
Kakao 79%
Orange marmalade( beautiful cause the girl is a vampire -3- )

If you are also okay with manhua,, then:
The One Manhua

I can't help but think that I'm a cannibal for eating all my potato cousins.

Sees a flying pig Don't touch me I have a boyfriend.