I've only been printing for a short time, so sorry if I seen ignorant. But I'm assuming you aren't a fan of the ABS-like resins? Minis are the bulk of what I've printed so far, I've done them all in Anycubic grey abs like. A handful of them have taken a topple off the printer shelf (~6 feet / 2m) and so far the only things that have broken are things I don't think a different material would have stood up to anyways (read: large objects attached with a tiny surface area, warhammer heads, a hand holding a glass orb, I think one cloaked arm). Everything has super-glued back together very easily (though they're all still unpainted, if they'd been painted the seam would likely be much more visible).

I had a small model (not quite mini sized) printed in standard resin that fell from a much shorter distance and broke in like 3 places so it's definitely more flexible/ durable than that.

It's also like $15 USD/L...

I've used TH72 a bit. I'd describe it more as shock proof than flexible. It'll certainly make your miniatures robust, but it's nowhere near as soft as something like TPU.