Notice I didn't say anything about that last bit...also, never said it was good writing, but sometimes you just want a bit of RPG-like shows...
There's been a lot of them the last few years, though. Overlord especially comes to mind as a superior example - hell, they even talk about Control Weather as a Fifth level (sorry, 'tier') spell. Danmachi, Konosuba, Maoyu, In Another World With My Smartphone, and I'm sure a half-dozen that I can't remember right now all are RPG-like shows. Even in the current season, "I was Reincarnated as a Slime" is in the same category, as is Merc Storia.
As for shows that have strong fantasy elements, there's Youjo Senki, Made in Abyss, A Certain Magical Index, Flying Witch, Ancient Magus' Bride, Witch Craft Works, Gate: The JSDF Fought There, Devil is a Part-Timer, and other stuff that doesn't come to mind but I'm sure exists.
The only thing that makes Goblin Slayer stand out is its edgelord, gratuitous nature. If you enjoy that, that's fine - we all want some gratuity now and again. But it's not unique or interesting aside from that.