Wireless Joint

Trying to replace my modems omnidirectional antennas (4x) with directional antennas (4x).. Any suggestions ?
Was thinking of using the PCB antenna and adding a SMA connector to it and or sacrifice the Omni and glue the PCB antenna onto the omnis and use the connector if i can rewire it..

Any experience with directionals or PCB antennas please share.

Thanks in advance

PCB antennas are omni-directional antennas; typically dipole.

Directional antennas generally would require an outdoor installation.

What is your setup for use case?