Honeymoon in more private tropical for 10k budget for novice travelers

Hi all, thank you in advance! We are planning a honeymoon for 7-8 days in early April 2023 and wanting to go to tropical place with ~10k budget and looked at some costco deals. Took a look at Fiji with some private resorts but just not very aware of many other locations that provides similar environments or places that others may have had a great experience. Would love some activities, great food, wifi, private environment