Iwane

http://www.mangago.me/read-manga/love_is_an_illusion/?Ijtm

http://www.mangago.me/read-manga/hosik_s_story/

http://www.mangago.me/read-manga/dear_benjamin/

this collection should suit you perfectly http://www.mangago.me/home/mangalist/50784/

don't know if you've read this yet but i recommend these mangas:

Adorable characters:
http://www.mangago.me/read-manga/harapeko_usagi_to_koisuru_ookami/
http://www.mangago.me/read-manga/sparkling_days/
http://www.mangago.me/read-manga/ousama_ni_kiss/
http://www.mangago.me/read-manga/only_the_ring_finger_knows/
http://www.mangago.me/read-manga/seven_days/

not exactly like silver diamond and koori.... but i definitely reccomend reading these:
http://www.mangago.me/read-manga/komatta_toki_ni_wa_hoshi_ni_kike/
http://www.mangago.me/read-manga/gorgeous_charat/

yaoi but it has a wonderful story:
http://www.mangago.me/read-manga/totally_captivated/

that's all that i could think of right now, hope you like my recommendations (๑•ㅂ•)و✧

1) fluffy, cute and sweet S/A & Yaoi

http://www.mangago.me/read-manga/hidamari_ga_kikoeru/
http://www.mangago.me/read-manga/oresama_no_toriko/
http://www.mangago.me/read-manga/usagi_otoko_tora_otoko/
http://www.mangago.me/read-manga/narippanashi_no_ai_no_kane/
http://www.mangago.me/read-manga/yuki_iro_machiboke/
http://www.mangago.me/read-manga/hachimitsu_darling/
http://www.mangago.me/read-manga/etowa/
http://www.mangago.me/read-manga/kimi_to_parade/
http://www.mangago.me/read-manga/yondemasuyo_azazel_san_dj_gouman_doragon_to_kaiinu/
http://www.mangago.me/read-manga/maou_no_amai_keiyaku/
http://www.mangago.me/read-manga/maigo_no_kare_to_kuma_no_onegai/
http://www.mangago.me/read-manga/count_h/
http://www.mangago.me/read-manga/kabe_no_naka_no_tenshi/
http://www.mangago.me/read-manga/lucky_number_13/
http://www.mangago.me/read-manga/sentimental_garden_lover/
http://www.mangago.me/read-manga/udagawachou_de_mattete_yo/
http://www.mangago.me/read-manga/number_call/
http://www.mangago.me/read-manga/m_nano_baka_nano_hentai_nano/
http://www.mangago.me/read-manga/bukiyou_dakedo_daisukisa/
http://www.mangago.me/read-manga/yamete_kudasai_mabushii_desu/
http://www.mangago.me/read-manga/rutta_to_kodama/
http://www.mangago.me/read-manga/slow_starter_ichikawa_kei/
http://www.mangago.me/read-manga/kawaii_akuma/
http://www.mangago.me/read-manga/sore_o_koigokoro_to_yobu_no_nara/
http://www.mangago.me/read-manga/u_don_t_know_me/
http://www.mangago.me/read-manga/nirameba_koi/
http://www.mangago.me/read-manga/seventeen_maple/
http://www.mangago.me/read-manga/ai_no_kotoba_wo_uragaeshi/
http://www.mangago.me/read-manga/no_color/
http://www.mangago.me/read-manga/uchi_no_tenshi_ga_kemono_deshita/
http://www.mangago.me/read-manga/mankai_darling/
http://www.mangago.me/read-manga/tomodachi_ijou_no_koto_shitai/
http://www.mangago.me/read-manga/julian_and_youth_a/
http://www.mangago.me/read-manga/sannin_gurashi/
http://www.mangago.me/read-manga/kozure_ookami_inoue_satou/
http://www.mangago.me/read-manga/yome_ni_konai_ka/
http://www.mangago.me/read-manga/kuroneko_wa_shippo_de_amaeru/
http://www.mangago.me/read-manga/torokeru_you_ni/
http://www.mangago.me/read-manga/hanagaya_eigyousho_no_kare/
http://www.mangago.me/read-manga/calling_ootsuki_miu/
http://www.mangago.me/read-manga/merry_checker/
http://www.mangago.me/read-manga/hitotsu_no_koi_no_hajimari/
http://www.mangago.me/read-manga/sick/
http://www.mangago.me/read-manga/soredemo_kamawanai/
http://www.mangago.me/read-manga/ouji_hiroimashita/
http://www.mangago.me/read-manga/fukurou_kun_to_kare/
http://www.mangago.me/read-manga/17_sai_no_hisoka_na_yokujou/
http://www.mangago.me/read-manga/free_punch/
http://www.mangago.me/read-manga/nar_kiss/
http://www.mangago.me/read-manga/kainushibouchu/
http://www.mangago.me/read-manga/ikumen_after/


3) Shoujo S/A

http://www.mangago.me/read-manga/hinekure_shisho_no_mikaiketsu_jikenroku/
http://www.mangago.me/read-manga/uso_tsurezure/
http://www.mangago.me/read-manga/jinjuu_houretsuden/
http://www.mangago.me/read-manga/tokaido_hisame/
http://www.mangago.me/read-manga/kiss_me_princess/
http://www.mangago.me/read-manga/daydream_nightmare/
http://www.mangago.me/read-manga/torikago_syndrome/
http://www.mangago.me/read-manga/toukaidou_hisame_kagerou/
http://www.mangago.me/read-manga/komatta_toki_ni_wa_hoshi_ni_kike/
http://www.mangago.me/read-manga/hinatama/

http://www.mangago.me/home/mangalist/26616/
Hope you find something worthwhile reading there :)