Where can I find the list of high reputed journals or a list of journals according to their impact factor.. is there any special website for the journals' impact factor?
To my knowledge, the following two websites are considered as two of the most common search-engines about journals' impact factor.
SJR allows you to search by subject area and category to be informed in which Q the journal belongs to (Q1, Q2 ...etc). The search list can be then downloaded in excel format if needed.
bioxbio: you can search by keyword or journal name to get a brief description and info about the journal with the historical impact factors and suggestions for alternative journals in the same field. Also, you can search by the general (wide) field.