When voting to close a question, you can vote to close a question because it "belongs on another site in the Stack Exchange network" (Closing > Off Topic > Migration), but the only options here are for Math Meta, Stats and Physics . However occasionally I find myself wanting to refer people to a different StackExchange site, most recently DataScience, StackOverflow, and TeX.
Is there an option for this in the current close menu? And, if not, maybe it would be good to include this in the Migration' part of the menu, possibly in the same way as the Duplicate menu with a text box to search for a relevant site.