I like the NPC map mod and Chests Anywhere. Haven't needed to use easier fishing, though maybe when I come to the legendary fish...
I just use a retexture of the cows, that replaces the default sprites with the ones from Harvest Moon. And I also used this retexture to create one for the brown cows too on my own. So I have cute white AND brown cows. Next is the cat. Let's see what I make out of it.
I use that one as well, but I use a different mod for the brown cows, which doesn't have the baby brown cow. Might you by any chance be willing to share your baby brown cow?
Omnifarm ( http://community.playstarbound.com/threads/xnb-smapi-farmcombat-mod-omnifarm.127299/ ) because it's so big, it's nice to look at and it has enough variety to make it more interesting then most farm map mods and because I like to use big maps it's kinda hard to till everything, put fertilizer down and plant seeds which is where this useful mod comes in handy http://community.playstarbound.com/threads/gameplay-mod-tractor-mod.126955/
Actually yea, I use automaton for almost everything and I also use Jumino huts to collect my crops. So everything gets done pretty easier, especially since the tractor mod makes it easier to collect crops. I'll have to make a new video showing off what I've done with it.
Besides the aesthetic ones, the ones I'm more grateful for are: 1. Automatic doors (I always ended miss clicking and dismounting or with the door on my inventory before I installed it) and 2. Look up anything (no more alt-tab for the wiki ).
My currently absolutely fav mod is the XnbLoader, since it lets you use custom .xnb files without having to replace or backup the vanilla ones.