It's out there, though like you said it usually says right on the label "with dashi" or "with bonito" like that one. I first encountered when a friend of mine was going to a Japanese store and it wasn't as obvious until I read the fine print.
It’s a fermented paste. You can make soup with it. Really good for your gut as well. Here’s the link.
Hikari Organic Dashi Miso Paste, Bonito and Kelp Stock, 14.1 oz https://www.amazon.com/dp/B07C86XW7K/ref=cm_sw_r_cp_api_glt_fabc_07M0GZ1PZP9GKTW2VEVY?_encoding=UTF8&psc=1
This miso has dashi already
Dried tofu, seaweed, green onion https://www.amazon.com/Ingredients-Nagatanien-business-wakame-seaweed/dp/B00T40ZB5G/ref=mp_s_a_1_3?crid=13HW3MPDFFDS9&keywords=miso+tofu&qid=1639860002&sprefix=miso+tofu%2Caps%2C60&sr=8-3