I have some fluffy ones with a little to none drama, they are all super cute and warm:
http://www.mangago.zone/read-manga/hige_to_suzu_to_shabondama/
http://www.mangago.zone/read-manga/shiawase_gohan_maki_to_hanazawa/
http://www.mangago.zone/read-manga/pochi_to_tama/
http://www.mangago.zone/read-manga/torokeru_tamago_to_bed_no_naka_de/
this ones have both before and after:
http://www.mangago.zone/read-manga/itoshi_no_nekokke/ (both)
http://www.mangago.zone/read-manga/umibe_no_etranger/ (before dating)
http://www.mangago.zone/read-manga/harukaze_no_tranger/
(after dating)
http://www.mangago.zone/read-manga/heating_up/ incomplete
http://www.mangago.zone/read-manga/love_nest_minaduki_yuu/
http://www.mangago.zone/read-manga/love_nest_2nd/
http://www.mangago.zone/read-manga/kedamono_arashi_kiss_me_baby/ this is when they have a baby so u should read kedamono arashi first
http://www.mangago.zone/read-manga/kiraide_isasete/
http://www.mangago.zone/read-manga/there_s_no_way_this_is_fate/
http://www.mangago.zone/read-manga/there_s_no_way_this_is_fate_newlyweds_arc/
http://www.mangago.zone/read-manga/blood_link/ but this focus on all generation related to main couple
http://www.mangago.zone/read-manga/souteigai_love_serendipity/ 1st couple's story is after they got together
any recs where the story also focuses on their relationship after getting together (づ ̄ ³ ̄)づ
i feel like most yaoi manga end right when they start dating