- Gospel Coalition Australia
- Ethos - Evangelical Alliance
- Centre for Public Christianity
- Thinking of God
- Eternity - Bible Society
There are other Evangelical para-church organisations that provide online resources but they're either focused on specific things such as church planting (E.g. Geneva Push) or unfortunately mostly behind a pay wall (E.g. Go there for). You may not agree with every article from them but these sites in the list above are both a good guide to what Christians are currently discussing and useful resources for sharing online.