My hands are not small - in fact, XXL gloves are usually kind of tight. But, my fingers are disproportionately short - and very thick. So, I'm one of those people who appreciates a pretty thin, pretty skinny neck. I don't absolutely
need a neck like that, but any bass that I pick up that has one, has already scored points with me - even before I plug it in. And, I prefer 34' scale basses, too; that's never been a problem. However... if you feel you have to have a short scale bass, with a thin, skinny neck?

It's getting hard to find a good one, but lots of early '70s Japanese basses - like this Matsumoku-made Epiphone EA-260 bass, have really thin, narrow necks. Lots of them - like this one - are short scales, too. Or,

violin basses are notorious for their little necks. And, although they're long scales,

some year's runs of Rickenbackers have thin necks (they're always fairly skinny). And,

Danelectros - both short and long scale - have very nice, slim necks. This silver DC59 Pro, in fact, has the neck I like the most...
Other basses? I couldn't say. I haven't played them - and, a lot of them don't make lefties, anyway...
