most adapters are just that, simply changing the shape of the plug and not messing with the voltage. it's like saying can i get a recommendation for a quality extension cord. they're pretty much all the same.
power converters aren't really necessary anymore.
Pretty much all modern electronics will work worldwide, you'll want to check the plug on your devices as long as it says "90-240 Volts 50/60 Hz" you'll be fine. anything with a "wall wart" should be ok, but check before plugging it in.
for things with a large power draw, like hair dryers and curling irons, you'll want a dual voltage version, or buy one at your destination if you need it. as a transformer that can handle that amount of amperage would be unwieldy.
looking on amazon there are several that are under $10, any of those would work, if you travel a lot, i might go more expensive, but for the average trip for a couple of weeks, no need to go more expensive.
just remember to take a power strip with US plugs, so you can plug in multiple things at the same time.