It's difficult to suggest this without more information. Which cards do you currently have? But, yes, if you have Infinia then it is indeed one of the best ones for 0 planning/usage involved to optimize the rewards even further. It straight away gives 5X on flights and 10X on stays. No need to meet any milestone or anything.
Bonus tip: You can use these points and transfer to partner airlines/hotels to get even more bang for your buck. I recently converted 50K Infinia points to 90K worth of hotel points which turned out to be an almost 60% return on my initial spend.