First of all, as the game got patched to 1.0.7 last year, be wary of older mods. The new categories/flags/limits that got added aren't handled too well by mods made before Nov. 2016.

If you want to add a bunch of buildings and production lines and shiny stuff, give Colonial Charter a try. CC 1.75 is the one made for the last version of Banished and is here in the workshop.
If you enjoy that, you can have a look on World of Banished[www.worldofbanished.com] and on the ColonialCharter[blackliquidsoftware.com] forums for mods that play nice with CC or for the large compilation of mods called MegaMod (currently in beta for its last version, compatible with banished 1.07)

The workshop also has mods from Discrepancy that are recent and pretty damn nice. I'm not really up to date on what else is available and stable directly from the workshop as I have the GOG version of the game and go pick my mods from the 2 sites I linked above.