I would suggest the established journals like British Journal of Haematology, Haematologica, Leukaemia Research rather than on-line journals which charge huge sums of money to publish.
Hello dear author, I will introduce you to the (Indian Journal of Medical Sciences )that is Scapus profile and it is free and their response is fast, but journals with strong Scapus index are usually not free, I am still answering your questions in this regard, sincerely