You might take a look at Kingdoms of Amalur Re-Reckoning . It was originally designed to be an MMO, then the studio ran into difficulties and for some reason made a single player game out of it. But it's really fun with varied class builds, leveling up, lots of grind in a wide variety of environments. It also has pretty decent lore for a game with such a troubled development.
There isn't any real equipment enhancing, but there's a ton of different loot, so you're always finding better & better equipment as you level up (much like Diablo). It's also under $15 right now if you grab it before the Steam Summer Sale is over.
Well, every RPG has some sort of levelling system. A few make it a little weird by levelling your equipment instead of your character, but it plays the same.
Grinding, though.... ummm.... my definition of "grinding monsters" would be that you're fighting monsters even though you aren't having fun with it anymore. I can't imagine why you would want to do something you don't find fun, so maybe you mean something else?
Crafting is pretty common but definitely not universal.
Welcome to a new world! In Monster Hunter: World, the latest installment in the series, you can enjoy the ultimate hunting experience, using everything at your disposal to hunt monsters in a new world teeming with surprises and excitement.
The 'monster hunter' style of gameplay is to fight big monsters, then incorporate their parts into your weapons so you can fight even more powerful monsters.
Experience Aloy’s legendary quest to unravel the mysteries of a future Earth ruled by Machines. Use devastating tactical attacks against your prey and explore a majestic open world in this award-winning action RPG!
I'm pushing it calling this an RPG, but I think it has enough leveling and skills to count. Great story once it gets off the ground (literally - the story starts to get good once you climb up a tower).
THE MOST AWARDED GAME OF A GENERATIONNOW ENHANCED FOR THE NEXTABOUT THE GAMEYou are Geralt of Rivia, mercenary monster slayer. Before you stands a war-torn, monster-infested continent you can explore at will. Your current contract?
Still the best RPG there is, as far as I know. I know there's crafting, but I can't remember if you can enhance things you've crafted or not.