I mainly focus on plants, but I am also more or less interested in all (visible) species in particular vertebrates, butterflies, dragonflies and fungi.
On iNaturalist I try to share my observations from journeys or excursions.
At home I use and support
https://www.natur.sachsen.de/zentrale-artdatenbank-zena-sachsen-6905.html
https://www.insekten-sachsen.de
https://www.ornitho.de