I find StreetComplete to be a handy tool on the phone that lets you enrich OSM data

https://wiki.openstreetmap.org/wiki/StreetComplete

StreetComplete is fantastic, alas there's no iOS version.

And after a while getting used to it you may want to configure the "questions" StreetComplete asks you.

Better not answer every type of question than get discouraged or fed up with the umpteenth "is there street lighting?".

Of course, if you can stomach being bombarded with questions every few meters, more power to you!

One category of questions I have turned off in StreetComplete is questions about wheelchair accessibility. Since I am not a wheelchair user, I have low confidence that I can identify potential problems for them. Like, obviously stairs are not accessible, but e.g. are the doorways wide enough?

I also turned off speed limits since it has a warning that you need to check the entire road, not just the highlighted spot.

For iOS, I've been using Go Map!! https://apps.apple.com/us/app/go-map/id592990211 Not as nice as StreetComplete but adequate to add some additional data where needed while on the go.

- Make sure your town/region is really good.

- Participate in mapathons (through HOT or local chapters of OSM)

- Join your local OSM chapter (usually a national organization)

If your local region is already well mapped you can check https://tasks.openstreetmap.us/ for "armchair" mapping.

There's many QA tools with error reports that need attention https://wiki.openstreetmap.org/wiki/Quality_assurance

I've made a bunch of contributions and they've almost all been very minor things. They're either information around where I live (which could be even a shop's opening hours), or when travelling, I add data that was missing (e.g. a bus stop). I just added a new-ish local burger joint across the way from me.

You can get in touch with your local community to see what the current hot topics are. https://community.osm.be/ should hopefully have it.