You should be able to filter by a certain tag name or color in the calendar view so that you only see tags in a certain color.
Hi @Lauren_Borchetta and welcome to the Forum!
Thank you for reaching out! As it stands we don’t have a specific filter for tags but there are two workarounds to achieve this.
If you click twice on the Tag you want to focus on, you will get a view of all tasks in different projects that contains that particular tag. From there, you can opt for the Calendar View.
If you have a Premium account, you can also use the Advanced Search Tool for this. Please have look at my colleague’s post where she explain how to achieve this: Filter Tasks In a Project By Tags?
I know this is not exactly what you are looking for since it’s not exactly a filter but I hope it helps you in the meantime.
There is also an existing thread in the #productfeedback regarding this topic. If you haven’t yet, I would recommend to upvote it.
Have a great Friday Lauren! And please let me know if you have any follow-up question!