AquaC skimmers use a spray induction system to mix the air and water that creates the foam in the reaction chamber. These skimmers are great, but require a powerful pump to push more water through the injector to in turn, create better foam production.
Beckett skimmers (a type of skimmer that uses a somewhat similar style of bubble production to the AquaC) are also something to look at, though these skimmers require a very powerful pump to create good foam, but are great at removing DOCs from larger tanks. Some good Beckett skimmer brands to look at are: My Reef Creations, Aero Foamer, Precision Marine, and Barr Aquatic Systems.
Euro Reef skimmers are a whole different type of skimmer from the ones listed above, but do an equally as good job of skimming DOCs as the AquaCs and the Becketts. These skimmers use pumps that pull in water along with air and use a needle-wheeled impeller to chop both into fine bubbles. The pumps used on needle-wheeled skimmers are much more efficient than the pumps used on the skimmers listed above, especially when used on tanks under 125-150 gallons. Other needle-wheeled brands to look at are ASM and Geo's Reef.
Downdraft (ETSS) and venturi skimmers (Berlin) can also work well for a tank of your size, but have fallen out of favor to the AquaC EV skimmers, Beckett skimmers, and needle-wheeled skimmers.