What optionals should be more suitable optionals for me? 

Ans:-

It is a highly sensitive issue, and the most crucial too, because choice of optionals goes a long way in deciding your prospects. However, the answer to your question can not be as straight-forward. It you have command on language, you can achieve your goal by keeping any optional. My suggestion, however, would be as follows: If you are a post-graduate in any discipline, that should be your first and obvious choice; the same would be true if you have done honours in a social science. Selection of first optional for IIT/Medical graduates too has become difficult. 

The puzzle, therefore relates to graduates in arts and literature who do feel confused. These days, at Mains level, some literature subjects, Anthro, Geography and Public Administration have been doing very well. Of these, the first two are only second optionals, and hence, your choice could fall on either Geography or Public Admn. However, History and Sociology have been counted as safe subjects for Prelims. So, if you intend to take Anthropology and any literature for Mains, you can, for Prelims, rely either on Sociology (most of which is covered in the Anthro syllabus and hence you get rid of the agony of reading a third subject) or History (that covers quite a significant part of GS).