My recommendation, think short term, ask what your customers want, make money from day one. Every journey is different, but if you're willing to talk to customers, build what they need as fast as possible, and make money from day one then you have a chance.
In terms of ideas, I would recommend exploring solutions you take for granted in you current country, that don't exist (or could be improved) in the country you're moving to. That's usually a good place to start.
In March I lost my 1.1m seed round for a startup I was starting in the event sector. Whilst carefully watching what was changing as a result of COVID-19 I founded https://covidcomply.org - first version was built in 6 days, 44 days of development later I can't keep up with customer requests now.
Take away; Chase daily revenue (small), daily product improvements (small), daily customer feedback (as much as possible).
That's my 2 cents - hope it helps ;)
