I use ttt
There aren’t many words with three consecutive "t"s
More specifically I formulated some triggers like this: tt+x
A common prefix tt (tiddler titles) + a suffix indicating a more specific suggestion filter.
-ttsh for tiddlers and shadow tiddlers
-ttss for tiddlers and system tiddlers
-ttt for normal tiddler titles
Now that I think about it, I could also define other triggers using: ttl+x → tiddler title link
Type “tt+x” triggers with the template $option$$caret$
Type " ttl+x" triggers with the template [[$option$]]$caret$
i use hh to trigger autocomplete plugin currently. would be interested to see what others are using!
i also use shift+z for save tiddler that is currently being edited (this is not an autocomplete function, just a keyboard shortcut i use on mobile which is not set up by default)