@pepelsbey if you're looking for an even bigger rabbit hole than just homeassistant, The Home Assistant Community Store has all sorts of extra integrations that didn't make it into homeassistants itself

A good first thing to install is the spook integration - while lots of its features are designed for power users (and thus probably overkill for someone who's just getting started), I found that its most useful feature is the "repairs" it raises when you're misconfiguring things on accident - things like using non-existing entities in dashboards or automations.

Have fun!