<a href=https://pgdash.io/blog/postgres-features.html?h"">PostgreSQL Features You May Not Have Tried But Should</a> - There's a lot floating around in that product.
Material Dashboard - A "free Material Bootstrap Admin with a fresh, new design inspired by Google's Material Design."" Not my fave look but hey it's this year's style.
Inspeqtor - Modern alternative to monit, now with all features in the free version.