The stainless Trustfire mini varieties are still around, check AliExpress. The Trustfire mini-01 was my favorite, difficult to find now, mostly see the Mini-03 and Mini-08. I guess the Mini-08 is attractive, the Mini-03 is hideous. I expect none of them deal with heat very well, get blazing hot when left on, reportedly too hot to handle. H-L-STROBE is a terrible interface. But they are cheap, and though they get hot, they are a little cool I guess. Meant for the keychain, none will tail stand, likely have PWM.
Trustfire sucks. Go for the
Fenix E15. Constant current, twisty L-M-H-Turbo interface, no blinkies, tail stands, Al host, so weighs less but still has better heat handling, 270Lm max with CR123A, 400Lm with 16340. Twice as much, but worth it. $10 more for Fenix E16 with a side clicky is also available, 300Lm max with CR123A, 700Lm with 16340. But it also has a strobe.