There are several ways to approach this one...
I'd use an Antennas Direct DB8e, starting with the panels set to 30 degrees off broadside.
https://www.antennasdirect.com/cmss_...s/DB8E-TDS.pdf Use a starting aim point for the broadside facing about 45° per a compass.
This gives you the benefit of a directional antennas ability to reduce the chance of multipath problems, something that can't be done with an omnidirectional antenna.