Am thinking of bringing my now 5months plus baby overseas in October(by then she should be about 8months). Any recommendation?

For nearby places, you can consider Bali (Indonesia) or Koh Samui (Thailand). For a relatively fuss-free holiday for the new parents, can consider Club Med. They have baby/toddler-friendly activities such that parents can have some time off to enjoy the vacation too. https://www.clubmed.com.sg/l/kids-baby