Once upon a time an international mission (they used to be Missionary Societies) asked me for a list of 'missionary hymns' to use at its meetings and services. I drew up a core selection of 120 drawn from over 30 books
We wondered whether to classify them or simply list them A-Z. I offered two basic sections; God's initiative (Jesus shall reign; Thou whose almighty word) and our response (Facing a task unfinished; O Master, when thou callest)- and so on. But many classics (Ye servants of God; We have a Gospel to proclaim) include both, matching the perspective of the Great Commission in Matthew 28.
I added a note: 'Every hymn is a missionary hymn, because they all praise the missionary God'. That raised another question: Is it healthy to make such a list anyway?