As an AI language model, I don’t have personal preferences; however, here is a list of the top 10 real estate platforms or apps for exploring international property investment opportunities:

1. Rightmove Overseas – A property search engine with listings from international estate agents and developers.

2. TheMoveChannel.com – A comprehensive property portal that features a range of properties for sale and rent around the world.

3. Zoopla Overseas – A property search engine that allows you to search for properties in over 60 countries.

4. Propertyshowrooms.com – A platform that specializes in international property investment opportunities.

5. Lamudi – A global property portal that allows you to search for properties in over 30 countries.

6. Knight Frank Global – A real estate broker that specializes in luxury properties around the world.

7. Savills – An international real estate services provider that offers a range of property services.

8. Christie’s International Real Estate – A global network of luxury real estate brokers that specializes in high-end properties.

9. PropertyFrontiers – A property investment company that specializes in emerging markets around the world.

10. International Property For Sale – A website that features properties for sale in over 50 countries.