Hi Mummy. Firstly congratulations.
You can check out YouTube and search bby must haves, regret purchases and etc. My advice will be don't purchase newborn diapers too much as infant outgrow them quickly. Mine outgrow within the 3rd week. As bby clothing try to get lesser 0-3months and more 6-9months.
Shops : Shopee , mummysmarket,baby kingdom, kiddy palace, mothercare. The promoter will be happy to help you out.
if you're on a budget like me eventho I could just splurge. I would window shop to the above stores and find cheaper alternative for my bby.
most important things u might need
diaper rash cream
changing mat
nursing cover
breast pump
nipple cream
I hope it helps.