Find your relatives in Argentina
You can use this Jewish Genealogy Forum to post messages in order to exchange information with other families with your same Jewish surname. There you will also find valuable resources for researching Jewish Genealogy in Argentina and to identify, locate and contact your lost family in Argentina like obituaries, passenger lists, phone directories, Jewish burial records and more.
By the other hand you can hire a professional genealogy researcher in Argentina at https://www.vitalrecords.com.ar.
If you want to manage yourself your research and you need to get documents from Archives of Argentina you can use the services of a company like https://www.certificatesargentina.com.