You should try for lectureship positions even now. Keep track of the recruitment notifications and apply. Disaster Management, Geoinformatics, GIS, Remote Sensing etc, would be courses to diversify your career options, or you could identify careers that appeal and for which you feel suited and explore the practicality of further training accordingly. Examples are indicative. The effort to diversify or enhance your career options ahs to be through personal initiative, not just accumulation of various degrees.