Tomiki named his "style" (in as much as he named it) Shodokan -- References here and here. So, I suggest we add a couple of synonymous tags: tomiki-aikido, sports-aikido, and shodokan-aikido. Or should we have them as aikido-xxx?
I shudder at Aikido-XXX, which sounds like a porn movie. Pardon me while I go and try to bleach away the images produced by that tag.
There is a part of me that does not want to emphasize the distinction between aikido and shodokan aikido; I don't perceive what I received from my Yoshinkan school as essentially distinct from what I receive from my current Tomiki instructor. I would treat them all as synonyms I recognize that there are many who perceive them as fundamentally distinct. I would prefer to use the aikido for all aikido, and reserve shodokan-aikido for material that is specific to the Tomiki lineage.
I'm not entirely sure we have enough relevant discussion to justify the number of synonyms, but in a spirit of hope, I suppose I can endorse the idea.
IOW it doesn't bother me that two tags are used, which negates the need for a specific tag to be created. The tag aikido-whateverstyle would also look a bit disjointed unless there were enough variants to make it look normal.