Credit card recommendations

I recently moved back to Japan after being abroad for a decade. Now looking for recommendations on credit card. I’ve read posts and reviews online but still couldn’t decide on it. Trying to get some wise advice here before going all in.

Preferences:
Not a heavy traveler, but three to four weeks holiday that usually involves hotels and long haul flights. Would like to earn points and pay a reasonable annual fee.

Backgrounds:
Single, lives alone in the countryside, 7-8M income.
Have three credit cards right now. None doing much good for me.
– a SMBC Ametie card that I got when I was a student. Kept it because I wasn’t eligible for any credit card while I was abroad. It’s a basic credit card except I now pay around 2K annual fee.
– An Aeon family gold card.
– an Amazon prime card for shopping at Amazon.
I’m eligible for SMBC’s “spent 1M a year get the gold card annual fee free for life” programme. If this makes any differences.

Used to focus on earning SAS points with SAS Amex and SAS Mastercard, two years got me two free round the world round trips. So I hope to get a credit card that can be somewhere similar level.

by immahelen