i do not recomend going for ddr 3 beceus ddr 4 is here that also coud mean that you need to also update you motherboard for ddr 4 but it will last you a lot longer cause if you feal like upgrading you dont also have to upgrade you motherboard
if you still want to go for ddr 3 here is some good ram Crucial 16 GB DDR4-2400 Quad-Kit, geheugen
and here is ddr 4 Crucial 16 GB DDR4-2133 Quad-Kit
i hope i have informed you engoufg