How would I make the long journey there? Would I likely be traveling with other prospective Varangians? Once I reach the Empire what would be the process from there?
I asked this question before (holy crap it was 7 years ago). The answer by /u/Dux89 there might interest you.
https://reddit.com/r/AskHistorians/comments/3ahsz4/its_the_year_1100_and_im_on_my_way_to_join_the/