An email marketing platform like Mailchimp and Klaviyo will do the job.
We are Klaviyo integration partners if you need assistance with that.
Hope this helps!
Shopify supports product types so you would be able to assign different products to different product types and supply that data to your suppliers. However, wouldn't you already have the different types set up as different products - perhaps variants?
It also depends on how you are sending your fulfilment information to your suppliers and if you need to customise or automate that process and map different data from your orders and products.
What's the data format expected by your suppliers? And what's the communication channel (email, FTP server, API)?
Exporteo can send orders to your supplier based on product vendor or tag.
Currently only one configuration is possible, but I'm going to add an option to set up multiple configurations.