my wife complains about my two dozen ( roughly) and many of them are small portables ( 128's in particular)
I however would STRONGLY suggest you free up that 27 and give it an Honest try, I find my 27 in a treadle ( dated 1900) to be one of my most satisfying machine. it is honest and simple and just works and works really well, and it cares not if it is light muslin or heavy canvas with light leather edging... and handles bigger thread without fuss or adjustment than my rotary machines . you may be surprised at just how Easy and trouble free it is. my ONLY complaint is it is really tough on thread if you leave the bobbins wound for storage.