Special note (and one I find super essential) is the 3D Printer Replacer, one of my favorite mods.
Otherwise, I try to keep my list to a minimum and simplified, as more mods = longer loads and more chances for something to go wrong. Then I have the cosmetics mods that I believe add the most to the game (item frames, nostalgic greenery, AnTi collection, etc). Next, the two main mods are Frackin Universe and Elithian Alliance, plus mods that expand/improve on them (planet info, BYOS for modded races, etc). Really standard quality of life kind of stuff.
This is my personal mod list for Starboundįirst are the most important mods for the game experience: XBawks race menu, Bk3k inventory, 9999 block stack, etc.