I really like Isekai where modern tech or knowledge is used. While cheat RPG skills are nice not using the modern knowledge or tech is a waste. There IMHO is nothing special about using cheat skills since they are technically possible in that world, however modern tech and knowledge would not arrive at that time to that world unless that person is from our world, so maybe that makes me feel special because I'm from this special world with advanced tech. For example: In Another World with my Smart Phone (MC gets to use a Smartphone and connect it to magic) Campfire Cooking in Another World with My Absurd Skill (MC has cheat skill to buy things from a modern supermarket) GATE: Where the JSDF Fought (Reverse Isekai where Japanese military gets to go into a Fantasy Isekai world) Japan Summons (Whole of Japan is summoned into Fantasy world along with their tech and knowledge ofcourse) The Master of Ragnarok & Blesser of Einherjar (MC uses smartphone and the knowledge from the internet to win wars and make tech for his people) Ascendance of a Bookworm (MC is a bookworm and tries to make paper and books etc using her knowledge from the modern world) Different World Foundation (MC uses knowledge from the modern world to make stuff like paper, gun powder etc) Doctor Elise: The Royal Lady with the Lamp (MC goes back in time into her previous like and uses her knowledge as a surgeon) Isekai Yakkyoku (MC uses his knowledge as a pharmacist to make medicine) Release That Witch (MC uses his knowledge as an engineer to take people towards the industrial revolution) These are the ones I've read. But I need moar!