You should just read whatever you're interested in. I finished a shit load of VNs during the last few weeks, and I only played the ones that are said to be the best VNs out there (at least considering their EGS score). However, there's still a ridiculous amount of VNs out there that I'm going to play. I read Rewrite, F/SN, HoshiMemo, Remember11, Grisaia no Kajitsu, Muv-Luv Extra, Chaos;Head and Little Busters already, but still, there are 20 VNs on my harddrive that I haven't even started reading yet, and I'm downloading 1-3 more VNs every day.
And while you're at it, you should try to read as few of the dialogues as possible and instead try to understand what they're saying just by listening to the voices. I already understand quite a lot of the simpler dialogues. In the meantime, I'm learning Japanese verbs, grammar, nouns and the corresponding Kanji so that one day, I'll be able to read untranslated VNs, since as soon as one can read the untranslated ones, a whole new world will reveal itself~