Greece is a member of the Schengen Area since 2002. Depending on the purpose of your travel to Greece, there are different types of visas that will apply to the occasion.
If you require a visa to visit Greece, please apply for it within a reasonable period of time (minimum three months ahead of the planned travel).
Whether you are planning to go on a visit, study or work and reside there permanently, you will have to apply for a different Greece Schengen Visa, accordingly.
Click at https://www.mfa.gr/en/visas/visas-for-foreigners-traveling-to-greece/ to view the list of countries for which visa is required depending on your passport type.
If you need assistance for your VISA Application, please contant your local Greek Embassy or ERA ltd (firstname.lastname@example.org)