Please do not take this response as a criticism of your feelings or emotional connections. What you are feeling is completely valid and awesome, the only thing I will be critiquing is your vocabulary/word choice.
In order for something to be a kintype, it pretty much has to have at least a rudimentary identity and perception of itself (be sentient or have a soul/spirit/consciousness.)
A kintype is not the same thing as an aesthetic. You in generally can’t call something a kintype if its something like, a time period, a type of clothing or fashion, a style or piece of music, a location, etc.
The exception is if you personally believe that the location/time period/etc in question DID/DOES have a sense of self awareness and identity.
For instance if you believe that your kintype is a particular magical circus that had a personality and awareness, or you believe that circuses in general are self-aware, then yes, it could be a kintype.
However, otherwise, the avenues I would explore if you believe your identification as a circus is linked to being kin, would be: did you perhaps have a kintype that spent their life involved with a circus? For example, a ringmaster or someone from a freak show? Someone for whome the circus would feel familiar and ‘right?’.
Don’t get me wrong, it is totally possible for you to feel like you identify ‘as a circus, clowns, tents, freakshow and all, but it wouldn’t be a kintype.
I believe that some people use the word ‘aeslink’ or aesthetic link, for this kind of relationship and identity! I hope that helps!