your request for life skills focused stories with no harem narrows the choices down a lot. there are more out there but most of the vrmmo stories are more focused on fighting your way to the top with life skills as a side focus. LMS Only Sense Online VRMMO Chef Legendary Blacksmith (i haven't read this one but the title is blacksmith focused) Reader
Coiling Dragon has the main character learn Sculpting to Hone his skills. Might try Elixir Supplier? MC learns Ancient Martial Arts in a Modern setting and medicine. Not a gamer fic but a trade type any-hew.