submission of documents according to the type of request

The documents required to immigrate to the destination country depend on the type of your request (work, education, investment, etc.). Here are some of the main documents in general:

Identity documents:

Valid passport with at least 6 months validity
Birth certificate and its official translation
New personal photo

Degrees:

Diplomas of different degrees along with their official translations
Academic transcripts
GPA certificate
Language certificate (IELTS, TOEFL, etc.)

Job documents:

CV
Work experience certificate
Business license (if any)

Financial documents:

financial ability (bank account certificate)
Bank account turnover
Investment documents (if any)

Other documents:

Clearances
Medical Certificate
Financial support letter from sponsor (if any)
Invitation from an individual or a company in the destination country (if any)

important points:

Documents must be officially translated into the language of the destination country.
Documents must be translated by an official translator of the judiciary or the Ministry of Foreign Affairs.
The documents must be submitted in full and without defects.
If needed, you may be asked for other documents.

Submission of documents according to the type of request:

Work immigration: In addition to general documents, you also need employment documents related to the desired job in the destination country.
Educational immigration: In addition to general documents, you need educational documents related to the desired field of study in the destination country, as well as a language certificate required by that university or country.
Immigration by investment: In addition to general documents, you need documents related to your investment in the destination country.