Bambu Labs has the AMS, Automatic Material System that sits on top of the printers and makes multicolor printing pretty easy, holds 4 colors but you can link un

Bambu Labs has the AMS, Automatic Material System that sits on top of the printers and makes multicolor printing pretty easy, holds 4 colors but you can link units together for up to 16. There's other companies that provide other multi-color solutions for other printers but Bambu's P1 and X1 series with the AMS really took off in the last 2 years.