National Library & Archives have some awesome stuff; there’s also regional archives / digitisation projects too. Eg this is Hawkes Bay stuff - if you like maps, here’s a link to a hand-drawn one from the 80s:

https://knowledgebank.org.nz/still_image/farm-location-map-dannevirke/?searchterm=map dannevirke

There’s a few other panels to it as well, its really well detailed - no idea who drew it or why. Maybe a stock agent or something I suppose.