Hi ! Can you recommend such series ? Sad- difficult past ,No FL-ML love Triagle , happy end

Similar to Flower of Evil , The Good Bad Mother , It's Okay to Not Be Okay , Perfect Marriage Revenge , Angel's last Mission : Love , Family by Choice , Lovely Runner , The Beauty Inside , Queen of Tears ,Come and Hug Me , Itaewon Class , Welcome to Samdal-ri , Crush , Just Between Lovers , Fireworks of my Heart...........