Botsuraku Youtei Nanode, Kajishokunin wo Mezasu
Kamitachi ni Hirowareta Otoko
In which our mc meets some gods and gets isekaied into the body of an infant. He lives in the forest for a bit and then meet some nice people and become their family. Very fluffy.
Kenja No Deshi Wo Nanoru Kenja
Haken No Kouki Altina (novel)
In which mc, a failed soldier, did something wrong and so, is forced to go to the frontlines. One day, he is transporting a civilian somewhere, and they get attacked. Although weak, he attempts to protect her, but finds out that the "civilian" is actually a princess known for fighting with a large sword. When the attackers are defeated, the princess offers mc the position of strategist/tactician for the army. At first, I thought it was hella slow. However, it gets better and better. A total must read. (I also have a guilty pleasure of strong girls and weak, but smart, boys. Ehehehehe...)
Isekai de Tadahitori no Mamono Tsukai ~ Tenshoku Shitara Maou ni Machigawa Remashita
Saihate no Paladin
In which our mc has been reincarnated (I don't know why I read all this isekai but whatever) into another world as a child and has been picked up by three undeads. They lead their peaceful and fluffy life as mc grows up. Eventually, he has to learn magic and swordsmanship, as well as houseworking as part of his daily life, but he enjoys it nevertheless. Eventually, someone mysterious attacks him and his adoptive parents and he finds out the truth about who they are. REEEE. This is one of my favorite stories, hands down. No fucking harem. Yes. I love it so much. Holy shiet yes. Can I just say, it's really good, the mc isn't too op, although he could be, but at least he isn't a fucking douche and can actually do stuff without being all "I'm not all that great. There are many others better than me" like some OTHER mc's (yes, I'm looking at you Master of Ragnarock). Also, HIS COMPANIONS ARE MALES and/or THEY AREN'T FUCKING ANNOYING AF. ThAt'S hELlA reFReSHinG.
Arifureta Shokugyou de Sekai Saikyou