Choosing between monolingual and multilingual models

Hello to the community. I have a question. I want to choose a sentence transformer model that would be used to create word embeddings.
Those embeddings would then be used for semantic search. My problem is that i want to use a model for the German language and i am not sure if it is better to use a multilingual model or a monolingual model that was only trained using German examples.
What is the best way to compare thier performances and see which model to use? Is there a good idea to perform clustering or classification using some of them and evaluate thier results?