Your main options are a dedicated container, shared/consolidated container space, palletized freight for smaller loads, or driving belongings down yourself. We deliberately don't quote prices here: costs swing widely with volume, route, insurance level, door-to-door versus port service, fuel, and season, and any number printed today misleads someone next year.
Instead: get at least three written quotes from international movers with demonstrated menaje de casa experience into Mexico, itemized enough to compare. Ask each one who handles customs clearance, whether a customs broker (agente aduanal) is included, what insurance covers, and what happens if the inventory is questioned.