Alright, a quick scan of my novelupdates list and I have picked out a couple. All of these are WN translations I have read/am reading, so I am going to be using the title that novelupdates gives them.

• I’ve Became Able to Do Anything with My Growth Cheat, but I Can’t Seem to Get out of Being Jobless - I read this one a while back and, iirc, it is a finished story. I don’t remember the ending being particularly satisfying, but it is more about the journey in this one. Basically, the MC is to jobs as Rentarou is to girlfriends. Fails at 100 job interviews, dies, and then gets reincarnated into a world in which he is cursed to be unable to take a job in that world’s class system. Only, it turns out, and you’ll never believe this, being jobless unlocks a lot of cheat ability shenanigans.
• Saikyou Juzoku Tensei ~Cheat Majutsushi no Slow Life~ - This one is another completed series, but I only read it not too long ago, so it is fresher in my mind. The MC gets reincarnated into a world with magic and goes full Rudy and studies it to hell and back, expanding this world’s conception of what is possible through his knowledge from his previous life. When he finds out that his clan expects him to marry his sister, the decides to run away from home. This kicks off his long journey that sees him start to realize just how OP he actually is when it comes to magic. The only downside is that during all his time studying, he never got any exercise, so he is super physically weak, getting exhausted easily and unable to do simple physical tasks. There is a manga adaptation, but it only really scratches the surface before it stopped being translated.
• A Demon Lord’s Tale: Dungeons, Monster Girls, and Heartwarming Bliss - This series also has a manga adaptation that is continuing to be translated, and the webnovel is still having translated chapters come out, so it isn’t a complete story yet. I haven’t fully caught up on the WN content, but have read most of it. It is a great example of a heartwarming isekai story first and then adventure second. MC gets reincarnated as a dungeon master in this world’s dungeon system. Has a run-in with the most powerful being in this world, the Supreme Dragon, and they come to an understanding in which the dragon will not instantly vaporize the MC. He slowly builds up a family for himself in the new world and begins to entangle himself with the affairs of humans and demons.

That is all I have time to write about at the moment, but I am sure there are others in my reading history somewhere. One series that I am actively reading, but out of morbid curiosity more than anything else, is Sekkaku Cheat. It is extremely NSFW, so be warned. There is also a manga adaptation that isn’t being translated any longer. I can’t say it is good, so I won’t recommend it, but I find the story somehow compelling if you can get past all the NSFW chapters (seriously, this series has at least one chapter devoted to any kind of fetish you can imagine).