Memory

early this week I made a purchase with my $750 stimulas package the gov gave to us in Australia, 1 pack of 4 DDR4 rams 3200mhz 64 gigs now I will have 128gigs of DDR4 memory 3200 speed, next on the list CPU as I don’t need any more memory so the CPU I need are the TR4 CPU, I was wondering 16, 24 or 32 core because I was thinking I the range 16 core cpu