The question
What are some modern Eastern Saints ...?
is a bit bizarre. "Saints" is a word whose meaning - at least in Christian ecclesiastical use - is not conditioned by modernity. The questioner might be seeking information as to the identity of some specific Saint or Saints - but in that case the pronoun is properly "who", not "what".
Apart from the martyrs, I would not attempt to answer the question "what is a Saint?"; that is really known only to God.
Aleksandr's comment that it would have been helpful for the questioner to have clarified his use of "we recognize" is well taken, since the questioner does not specify whom he has in mind by "we", and the questioner's profile gives no indication of what Church, if any, he belongs to or identifies with.
Fr. Serge