What's the most basic way to create and handle multiple objects?

I'm trying to figure out what the most basic approach would be to effectively (or at least more effectively than what I have) create and manage objects. I know I could store them in a table when I create them which is what I currently do, but I'm not sure of a way to do it that would not be clunky to work with.

I don't have that much code to share, but here's a simple item class I made I'm trying to make use of composition although I still ended up using inheritance for the BaseItem.

function TestItem.new(x,y,w,h)
    local self = setmetatable(BaseItem.new(),TestItem)

    self.render = Render.new(x,y,w,h,Enum.GraphicType.Rectangle,{1,1,1})

    self.playerIsNear = false

    grid:insert({x = x, y = y, width = w, height = h}, self)    

    return self
end

And here's the main code that creates the objects.

function love.load()
    local screenWidth, screenHeight = love.graphics.getDimensions()

    grid = SpatialGrid.new(screenWidth, screenHeight, 70)

    player = Player.new(10,10,40,40)

    allObjects[1] = TestItem.new(300,50,20,20)
    allObjects[2] = TestItem.new(800,250,20,20)
    allObjects[3] = TestItem.new(600,300,20,20)
    allObjects[4] = TestItem.new(900,600,20,20)
end

function love.update(dt)
    player:update(dt)
    for _,object in ipairs(allObjects) do 
        object:update(dt)
    end
end

function love.draw()
    player:draw()
    for _,object in ipairs(allObjects) do 
        object:draw(player.input) -- the item objects need the players input component so they can display the interaction key
    end
end