I like to know more before I make suggestions. Is it for self defense? Then normally a trainer would be solid advice, but I wouldn't even get that far, given the weak handle. Is it for light cutting? Then a trainer is not needed at all, and the handle may be sufficient, but I wouldn't risk it myself. Is it for hard cutting? Insert laugh emoji in a font size several times larger than those offered on the forum.
I'd suggest a River Hawk from New River Knife Works. Fixed blade, in the same size category, and no strength worries whatsoever in either role. There were only about 34 ever made, and only five are left on his site. I don't know if I will ever make them again, since they are a design that I agreed to keep exclusive to his dealership.