CRISPR/Cas9 can certainly be used for that purpose. Make sure that your gene of interest is as the end under the control of a yeast promoter and that insertion site presents no risk for cell viability after insertion.
I have started with CRISPR/Cas9 in S. cerevisiae using the excellent system described in the following paper. The main advantage is that all the strains and plasmids used in the paper are available from Euroscarf and protocols are detailed. Article CRISPR/Cas9: A molecular Swiss army knife for simultaneous i...