If you want to label the Golgi then you can add EGFP sequence to many resident Golgi proteins and express them them through the plasmid but as I able to understand you want to localize EGFP to the Golgi these are few references which might help you.

1.Article Mechanisms of Protein Retention in the Golgi

2.GArticle The Golgi-targeting sequence of the peripheral membrane protein p230

3. Article ER and Golgi Localization Sequences for Mammalian Target of ...

Thank you very much for your response.t I will try to use HEAT repeats as indicated in the third article you send.

A commonly used trans-Golgi marker is GalT-EGFP (EGFP fused to the transmembrane domain of galactosyltransferase). It's available from Addgene: https://www.addgene.org/11929/

We also have good experience targeting the cis-Golgi with mCherry-tagged GM130 (this one should also work with EGFP).

Van der Schaar HM, 2016, mSphere

Article Illuminating the Sites of Enterovirus Replication in Living ...

Many other existing plasmids are also around, check e.g. Addgene's guide for this: https://www.addgene.org/fluorescent-proteins/localization/