Newsletter plugins

Ok so I am a newby to all of this and I’m looking for something to manage my subscribers and send out email etc.

Heres what I need – its for my business and will have 5 different pages. On each page readers are encouraged to sign up for a free report – different report for each page. Upon siging up they are sent a pdf report

They can also sign up for the blog which is the same for all five pages

Expected numbers may well be over 500

Any recommendations? Is tribulant ok or should i use aweber or something else.

I’ll be sending out new blogs to all subscribers every week and probably a secific one to each group every month.