My Sheet Metal
Don

Gutters, fashia and soffit makes your house look great.

digicolor
fluxionary

node whose color can be set via digilines

Colored Blocks
sermow

Different colors of: stone, stone bricks, wood obsidian, and glass

Abritorch
mt-mods

multicolored torches

Pillars
citorva

Add a lot of pillars for fun.

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options to Minetest.

Columnia
mt-mods

Adds simple pillars and columns

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

My Lights
Don

Lightbulbs and light fixtures.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Pink Lava
TenPlus1

Adds pink lava to certain depth of map with new mahogany obsidian block

More Snow
Sokomine

snow and wool for stairs - nicer winter landscape and snow-covered roofs

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

Nodes for rails
MatyasP

Some nodes for building railways, primary for Advtrains railways.

Rainbow Source
Shara

Adds coloured water.

Bunker Block
Spooks

Add blast proof concrete and its craft items.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Better Locks
SkyBuilder1717

Adds locks and locked doors

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

Better Ice
TheFanne

Modifies ice so that it melts into water when broken, and will be melted by torches

My Hole In The Wall
Don

Decorative blocks for around gardens and more

Better Fences (1F616EMO Redo)
1F616EMO

Allow fences to connect to all nodes

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Falls
Just_Visiting

A Particle-based Waterfalls/Lavafalls Mod

Node houses
MatyasP

Node houses is a mod by MatyasP that adds one-node block of houses, for crafting using items from mode default.

Color Blocks
mt-mods

Contains colored building blocks.

My Paths
Don

Dirt paths.

My Chisel
Don

A chisel that allows you to shape blocks.

My Default Glass
Don

Glass made from many default items

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

My Flooring
Don

A basic set of flooring

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

Node roads
MatyasP

Add much of one-node roads and crossroads, road bridges and slopes

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Poly Decor
mt-mods

My spin on decorative stuff.

My Stone Paths
Don

Stone paths

My Slopes
Don

MySlopes

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing