If you use iOS or MacOS devices, Drafts would be an excellent choice for this.
It labels itself as the place “Where text starts”, and allows you to build your own “actions” to send that text where you want it to go. So, for example, you could build an action that sends the text to Airtable Via the API - and I bet if you got creative, you could get the action to recognize tags (say following a # ) and convert them to options in a multi-select field.
Drafts is a great tool for text automation. But it is only available for Apple devices.
To achieve what you are wanting, you’ll need to create a custom Action in Drafts that uses a Script:
Feel free to PM me if you want to dive in deeper, step by step.
Different people use/need different features so it depends.
Joplin should be enough. It has served me well for markdown function. for you, it is just a matter of whether there is something you need that Joplin is not offering.