You have in the right direction. (good stuff)
For your Antminer L3+Just find Scrypt-based coins that most profitable than other Scrypt-based coins. Asking what coins it is, wouldn't help. Cause after that coin name appears here, soon that coin will be worthless. Find that coins by yourself for y0ur self.
For your GPUs (GTX1080 / 1080TI, Vega 64)/font]You should know, which algorithm is the best for each. Then find the best coin for you on that algorithm.
POSAs I recall, my last POS coin is Peercoin (PPC). I don't have an idea about nowadays POS coins.