I am really bad at guestimating shrink tube sizes, and the smallest I have on hand is 3mm, but looking at 30 and 24 guage next to eachother 3mm seems a bit large but it should shrink down ok, and just from a mental picture of 3/32 (2.38mm) it might be a little snug on the coil, but not impossible (IMO)
it sorta depends on how much solder you blob up on there, cause remember wirewrap doesnt hold (for very long) on rounded parts