Depends where you want to go and what type of miles you want, but either of these Chase cards would do well for you and have no forex fees:

Chase Sapphire Preferred, 40k after $3,000 in 3 months
Chase Ink Bold- 50k after $10,000 in 3 months
Chase British Airways- Either the 50k + 50k when you buy a ticket and pay two annual fees, or the 50k after first spend and 50k after $20,000 in 12 months.