These hotels are in Neunkirchen, close to the tennis club or easily accessable with public transportation / bus :
Holiday Inn Express
https://www.ihg.com/holidayinnexpress/hotels/gb/en/neunkirchen/cgnnk/hoteldetail
Scheiber Hof Pension
Pension am Stummplatz
Complete list of hotels, pensions & apartments in the greater Neunkirchen area (County of Neunkirchen) - download pdf file below
Gastgeberverzeichnis Kreis Neunkirchen
List of accomodations in Neunkirchen county