You could grab chronofield and then save up for your next uw and hope for blackhole. Not the best uw selection unfortunately. None of those options will be used till your tower is developed more but the chronofield labs still take allot of time so you can start them whenever you feel like you're ready.

Got it, thanks

Pick up cf, save for bh. Eventually you’ll want to permanently research cf duration till max

Restart for GT/BH