Heya mama, I didn’t use a doula but I have heard many mums recommend the following Dr Janelle or Ginny from Four Trimesters. Deanna Kearns does a lot of waterbirth in NUH. Another popular doula is doula Lorraine Sanghani https://www.facebook.com/lorrainethedoula https://m.facebook.com/laboroflovedoulasingapore/