I'll take 'new' as mangas that came out in 2019 and this year. Here's my pics:
http://www.mangago.zone/read-manga/mihanada_pectolite/
http://www.mangago.zone/read-manga/ichika_bachika/
http://www.mangago.zone/read-manga/meguro_to_akino_wa_kizukanai/
http://www.mangago.zone/read-manga/usagi_chan_doshikori_moushiagemasu/
http://www.mangago.zone/read-manga/the_good_luck_story_of_an_unlucky_guy/
http://www.mangago.zone/read-manga/see_you_later_mermaid/
http://www.mangago.zone/read-manga/welcome_to_the_yaoi_research_club/
http://www.mangago.zone/read-manga/shoushin_otoko_ni_haru_no_arashi/
http://www.mangago.zone/read-manga/suki_nante_iwantoite/
http://www.mangago.zone/read-manga/tasogare_outfocus/
http://www.mangago.zone/read-manga/senpai_danjite_koidewa/
Please recommend me some new mangas. New ones which are completed with like 5 chapters. Recently, all I see are webtoons or manhuas that are long. All I've done these days is reread so I'm not updated to new mangas. Thank you!