OV9

Evo used to (many years ago) print a monthly calendar in the magazine with upcoming Motoring type events - usually races

It was good. Often showing things that I didn’t know were happening

Where can I get such a thing now?

Octane (though obviously has a slightly different focus and also pan-European)

There’s an app called Formulr that has a pretty comprehensive race list, if you mean pro-race events. There was a website that had all the local stuff on, but I can’t find the link. Maybe it was the one GG mentioned?

The new title Magneto do something similar to Octane for this, with similar caveats on the focus, too.