We’ve all already talked about switching away from google/apple maps to something like openstreetmaps, mapy, tomtom amigo, etc. But all of these services use openstreetmaps (UK non-profit) as a source and they still miss a lot of local data even for bigger cities!
If you have some spare time, think about adding a bit of data to the map with your local knowledge. There’s a lot of business data missing that is on google maps like websites, phone numbers and opening hours but also stuff like parking lots and whether they’re publicly accessible and free or not. Adding these makes the competition of ALL services using OSM as a source better.
I also use the mobile app https://streetcomplete.app/ and https://every-door.app/ to add data while on my walks, these make my walks more engaging and I actually take longer ones + see new places because of it. Streetcomplete also has a focus on important and easy to collect data with their default filters, and you can choose what you want to contribute.
If you really want to get into the thick of it and contribute more than just simple data you can always check out https://wiki.openstreetmap.org/wiki/How_to_contribute and see in which of the many ways you can contribute!
Tip, talk to your local authorities and see if they can provide all of the data which you can then import to OSM.
Please check the wiki and your local osm community before doing any mass imports. Not gatekeeping, but often this can lead to conflicting/duplicate entries, tagging at odds with consensus, licensing issues etc.
Best start with small scale surveys/local knowledge stuff and if you’ve gotten your hands on datasets for importing, reach out e.g. on the forums or local in person meetings too discuss how to proceed.