hikigaya hachiman sousou no frieren mangakakalot
First of all I would like to say that despite the ecchi tag; the fanservice in this show is very light (other than episode 00). In reality, Saekano is much more similar to shows like Kami nomi zo Shiru Sekai, OreImo and Outbreak Company as it has a character cast mainly consisting of otakus, and it consistently parodies and makes fun of today's anime industry as well as the eroge market as a whole.
In case that wasn't clear, the story is about your typical high-school otaku named Tomoya who has a dream of creating "the ultimate galge" that can touch the hearts and souls of everyone playing it. In order to do so he seeks the help of his tsundere childhood friend Eriri who secretly works as a hentai doujinshi artist on her spare time, as well as the so-called "smartest girl in school" Utaha who is a famous romance light novel author. Together they form a doujin circle and seek to create a homemade galge in order to fulfill Tomoya's dream. As the icing on the cake however, Tomoya also recruits his completely plain and emotionless classmate Megumi to join the circle, with the intention of "training" her into becoming the model for the game's main heroine. It's a very silly concept that doesn't take itself seriously whatsoever, but as a result it's surprisingly entertaining.
If you're well-versed in today's anime industry, along with all the moe and ecchi shows that come out these days, then you'll probably like this show a lot because the endless references and parodies of it are absolutely hilarious. If you also happen to play visual novels, then it'll be even better still. I familiarized myself a lot with this anime, and as a result it almost never failed to put a smile on my face.
Over time, there are some moments when the show gets a bit more serious on the romance/drama front but it still keeps it fairly light and doesn't go past the point where it starts feeling cliché.