I just use whichever bricks look thematically relevant to whatever I'm building.
Boreal wood goes with just about any other wood type. Grey Brick/Red Brick/Sandstone/Mudstone/Stucco/Glass are also good contenders for building earlier structures. I'm no good at building with the Heavy Workbench blocks but I'm eager to find out what goes best with them. Iridescent blocks can be troublesome to make early on, but not outside the realm of possibility, as are Obsidian bricks.
Wood/Boreal Wood Fences make good windows for a base made with stone, I've found. Creative-use of platforms under windows to place books/glassware/flowerpots/other decorations makes your end-product look nice, too.
Some of the most beautiful bases I've seen were made with various ore bricks, obsidian/iridescent bricks, coloured torches/gemspark blocks, etc cetera.