The answers will depend on what your qualifications are, not where you are located. If you have good Internet, there are many platforms that allow you to bid on jobs regardless of your location and they will pay youso that the money ends up in your account.

Find somenthing that you would want in your home country but you can't get at the moment, or not at least at a reasonable price or good quality.

You can become expert in a field and provide that extra and get a profit. For example you can start resealing merchant for a niche that you like, eventually you will become good at spotting what the market needs.

Earning money online in Papua New Guinea is realistic and achievable thanks to growing internet access. Here’s how you can get started:
Freelancing: Offer services like writing, design, or virtual assistance on platforms like Upwork or Fiverr.
Affiliate Marketing: Promote products through blogs or social media, earning commissions on sales.
Online Tutoring: Teach subjects or skills via platforms like VIPKid or iTalki.
E-commerce: Sell local goods or dropship on platforms like Etsy or Shopify.
Content Creation: Monetize YouTube or TikTok through ads, sponsorships, and fan support.
With PNG's increasing internet use and digital payment growth, online income opportunities are expanding. The digital world is full of potential, and with the right strategy, you can turn your skills into a sustainable online business.