https://webleedfpv.com/products/webleedfpv-465-mah-1s-bt2-0-xl-90mm-lipo ^probably the longest flight times, but the lava 300mah is what I prefer on my air65Race version; I originally slapped a ph2.0 pigtail on mine to use old batteries... my 220mah would brown-out from anything more than a hover, and crash. My gaoneng 250mah would fly flashing low battery but fly for 1:30... I swaped to the bt2.0 connectors on those same batteries ( I wouldn't recommend swapping plugs on those stick packs; difficult) and it maintains higher voltage for longer but last about 2minutes, landing at 3.15v, resting voltage came back to 3.75v.
After putting 1208x3 props, and 96k pwm firmware on escs, I get 2:10 of speedy cruising 1:50 of intense freestyle; my osd says 150mah used and by then it's at 3.15v hovering
The lava 300mah is the way to go. When I land those packs at 3.4v they come back to 3.75ish, and usually over 3min of hard ripping because the folded cells are so much better!