Can you tell us some about your useage? How long do you typically use a light at night?
Assuming you have a 3000mAh cell, you could get ~3hrs runtime (theoretical) from an emitter driven at 1A:
https://www.fasttech.com/products/0/10002364/1195006-convoy-s3-cree-xm-l-u2-1b-2-group-35-mode-edc-led-
That would give you useable light, but would be best suited for close use, and would not have any “wow” factor if you need bright illumination. My typical EDC is a 14500-powered TrustFire F20, driven at ~1.4A. It works well for my normal needs, but if I go outside at night I usually grab a more powerful light.
Based on Match’s chart here:
…I’d suggest going with the 6x 7135 driver which should give you the 700 lumens you wish, but at the expense of runtime.