What is the you are designing? (e.g., logo, website, poster)

Here are some tips and variations to help you get the most out of Aktiv Grotesk Extended font:

Aktiv Grotesk was released by the renowned type foundry in 2010. It was designed as a response to the overused Helvetica and Arial. Designers love it because it offers the clean, legible structure of classic grotesks but with a more refined, contemporary spacing and a slightly warmer character.

If you can tell me you are working on (web, print, logo), I can provide a more specific recommendation for the best font weight to use. Alternatively, I can help you compare the licensing costs of Aktiv Grotesk against its competitors. Readymag Design Almanac: Typography

Here is how you can legally access this typeface, ranging from totally free to paid commercial.