Have you considered employing them as remote workers ? You will not have problems with timezone/office-hours if you employ in EU countries and moving can be a problem for some people.
Well, I would like to work with them in one office place.
I had freelancers working with me before and it worked fine most of the time but it's more about building something together here and learning from eachother. Maybe I should try looking on platforms like Couchsurfing for this matter, hm.
surprisingly enough they send to my country (Cyprus) which is not even mainland and they don't send to Estonia which is supposed to be one of Europe's start-up centers