Hello I am studying the interaction between parasite (flatworm) and fish. I sequenced a parasite genome, and have annotated the protein genes, I want to find their orthologues in fish, as far as I know, the following two methods may achieve this:

1. use OMA or Orthofinder;
2. use reciprocal BLAST

But I am not sure which method is the most accurate and if there are other suitable methods.