This is the list I latched on to when I started submitting again in 2011 (46 to go…):
It probably should be called “50 Top Established Literary Magazines” (not necessarily “best,” since that’s so hard to quantify), and it does need further updates (for example, Barrow Street has been taking online submissions for quite a while). It also leaves out online-only journals.
And this is a list I check as it is updated every year, a great resource:
Hope these are useful.