Homufate

When They Cry (Higurashi -> Umineko) Chaos series (Chaos;Head -> Child) The House in Fata Morgana + Requiem for Innocence

Well I'm fine with any genres but I could only buy one title so I mean I want to read all 3 but have to decide which first

Also any other recommendations? currently read The House in Fata Morgana. Already read: Higurashi, Umineko, Steins;Gate, Clannad and Little Busters. Loved Higurashi/Umineko and like other three, between G-sen, Grisaia and Dies Irae which should I read first? (gonna read all of them anyway so just pick the one you like the most)

Ef: a fairy tale of the two

Depend on the VN if there's true route like Gr-senjou no Maou. I would consider myself finish VN by finish the true route regardless of other routes (except if it forced you to through other routes in order to read true route like Ever17). But if there's no true route like Grisaia or Fate/stay night then I've to completed every routes. Higurashi and Umineko are easier to consider because they're linear

Umineko is my favourite out of those though Fate/stay night is amazing to

Here goes -Umineko no Naku Koro ni -Fate/stay night -Higurashi no Naku Koro ni -Saya no Uta

Second Higurashi and Umineko also Saya no Uta as well

Umineko and Saya no Uta are pretty damn unique. Higurashi and Fate/stay night (in term of concept) as well

No Mion x Shion from Higurashi....

I don't think you should judge the whole VN for someone saying something is boring. Anything can be boring for someone and entertaining to some if they're interested in the subject that VN focused with. As someone who also love Fata Morgana to. I personally enjoy almost every of second of the whole Umineko despite it being very long. Admitted it have some slow-paced part but after finished the whole 8 episodes. It pretty damn worth it.

Umineko is probably closest VN to Fata Morgana out there. Also maybe try Saya no Uta and Higurashi.