Arrivals from Ukraine can register at the central contact point of the city of Bochum (address: Diekampstraße 28). There you can apply for a residence title according to §24 and get information e.g. about accommodation and social benefits. You must register within 90 days of your entry into Germany. The opening hours are: Mondays to Thursdays 9 am - 3 pm and Fridays 9 am - 1 pm.
If you are planning to study or work in Bochum and/or already know people in Bochum, please state this when registering. If you already have an admission, employment contract or similar document, take it with you.
You can find all the support services offered by the city of Bochum here.