There are currently only three available Circuits farming locations which are Venus, Ceres and the Kuva fortress. Among the planets, Venus and Ceres are good for early game Circuits farming, while players may see the Kuva Fortress as an endgame farming location for Circuits.

Where can I farm circuits in Warframe?

There are only 3 planets where Circuits may be farmed. These planets are Venus, Ceres and the Kuva Fortress. While Venus is a good early Circuits farming location, Ceres is considered to be the best location for farming Circuits due to the Dark Sector bonuses that it has.

Where can I farm circuits Reddit?

Gabii on ceres, or seimeni also on ceres. Both are dark sector so you get the +35% resource drop chance. And ceres also drops orokin cells as an added bonus!