A few things to know about the Cap One Venture One card that I didn't know before I got one: they have the new purchase eraser feature which doesn't quite work the way I thought it does. For example, I thought if I spent $1000 on a vacation and I had say, $400 of points on the CapOne card, I could just deduct the $400 from the total and only pay $600 out of pocket. Unfortunately, that's not how it works. If I have $400 worth of credits, I can only deduct things that cost up to that amount. For example, if I had a plane ticket for $300, hotel bill for $600 and miscellaneous (parking, tolls, etc) for $90. I can erase the $300 and the $90, but not ANY of the $600. That may not sound so bad, BUT, if the plane ticket cost $401 dollars, the hotel cost $402 dollars and miscellaneous costs were then $198, I could ONLY deduct the $198 from my vacation expenses. Another thing to know about the CapOne is that it takes much longer to tack up points than I originally thought. In that same example to earn $1000 worth of points, you have to spend $100000. *Obviously, this doesn't include the bonus points you get for signing up.
There are some similar cards that also offer no Foreign Exchange fees, but you may get able to get around the issues above. The Barclaycard Arrival is one and the Chase Sapphire Prefferd is another where you don't pay forex fees. The Barclaycard is set up like the CapOne above, but there isn't the issue with the purchase eraser I BELIEVE (I don't have this card, so double check). It works the same way in terms of earning the points, but you get an annual points bonus that CapOne doesn't offer. I heard this can be a hard bank to get credit from, so I would only apply if you have really good credit (you don't want to waste a credit pull). The Chase Sapp. Preferred works differently. It earns miles rather than points, but the nice thing is, it has several partners you can transfer your miles to) so let's say you have some British Airlines points, but not enough for a frequent flier ticket, you can transfer some Chase Sapp miles into the Brit Air account). I am certainly NOT the authority on this subject, but you can start reading some blogs about this topic. I recommend: The Points Guy, MommyPoints, MileValue, The Frugal Travel Guy and a few others.
I hope this helps you decide on a credit card strategy.