my choices for fast finishers would be CH9 jack which finishes in just 49 days and is a nice potent low odor mid that looks indica, but smokes like a tue mid with less stone than skunk #1/masterkush/blueberry etc. it's super heap, nice and potent, has a little bit of sense heightening, and is very euphoric. once i saw those broad leaves, i was determined not to like it as i don't go for indicas, but it surprised me and would be one of my top choices to shorten and speed up hazes etc. with less impact on the buzz than NL#5, skunk #1, afghani, critical +, & blueberry etc.
i REALLY want to ty TGA subcool's 49-55 day (or faster... 45-50?) third dimension as i already love their slower finishing, but also 50% JTR jack's cleaner 2 and have had it recommended to me. a trippy and motivational strain that finishes as fast as cinderella and apollo 11 sounds like a winner to me, and it's other half is apollo 13 which should be decent in it's own right too. i WISH i went with apollo instead of cindy when i bought my joey weed beans as it had a "boring" nothing but motivation and euphoria clear headed buzz without any of the fun sensory heightening psychoactivuty i was after, and now both are extinct and you can't get apollo 11 in particular anywhere anymore. i grabbed a C99 x A11 pack when i saw his gear was going extinct and wound up with just a pair of males after a couple of nosy landlord induced aborted grows and used that to pollinate everything,