AA Size, look at the Reylight Lan or Pineapple. Bodies are slightly different, but same internals and both run on rechargeable or primaries. Several different materials to choose from, I prefer Ti.
AAA size, the mini pineapple is amazing. Same deal as above, can be had in many materials and can use rechargeables or primaries. His current release have a Nichia 519 LED, which is my current fav emitter. Fantastic CRI and great brightness as well. Usually you sacrifice brightness for CRI.
Both can be had for under $100 for Ti. Less in other metals. Probably the best bargain for a semi-custom light currently anywhere on the market.
The Rook is a triple, that runs on 18350's and is the sun in your pocket. I do not have one, but the reviews have been fantastic.
Edit to add his website: https://reylight.net/collections/all
He is a one man show, based in Asia, so products will come and go from his site (and there are other places that stock his stuff). Takes about 2 weeks to ship here from Rey himself.