It’s not clear if you want AA or AAA, there is a difference between the thread title and your text. AA is easy, http://www.zebralight.com/SC5c-Mk-II-AA-Flashlight-Neutral-White-High-CRI_p_192.html. There is direct access to beacon with a triple click from off, with a flash every 5 seconds

AAA, https://www.amazon.com/Manker-Flashlight-Keychain-Reversible-Magnet/dp/B071W211VQ. No direct access to beacon, you have to go through turbo, strobe, and SOS to get to beacon, which is one flash a second on high.

I have both and they are both good lights. There must be other choices for both AA and AAA.