The Klarus are nice small lights, the Peak lights are shorter, but thicker and requires LiIon batteries, The Klares has 3 brightness settings, the Peak is adjustable with a QTC pill (If you get the right model). The 38DD is a limited run, also with a QTC pill.
For AAA lights, check my website I have compared many of them.
Is the middle one a AAA or 10280 eiger?
On your older photos the eiger looks longer than most other AAA lights.