Which credit card for free international lounge access?

[skywatcher404]

I already have a Diners Club Black credit card, but it wasn't accepted at several lounges, primarily in tier-2 international airports. I'm looking for cards that would significantly increase the range of accessible lounges. Any suggestions?

 

[WhoU]

Any card which can get you priority pass - Infinia, Magnus, Zenith

 

[bhsiddharth]

Yes go for priority pass.