Yeal TFA isn't a bang on almond flavor for me either but I still like it at low percents in my tobacco mixes. The most authentic nut flavor I've tried so far was TFA Walnut. It was pretty close to dead on raw walnut, but unfortunately for me, walnut is my least favorite nut flavor to mix with tobaccos.
Lots of folks swear by AP and I also like AP but to me it's more of a bread type flavor. Might be worth a try if you haven't done so already.
If you have any peanut butter flavor, you might try a couple drops of that. Peanut butter goes with everything lol.