I searched some RAMs that I can afford
Team Elite Vulcan TUF 16gb 2x8 3200mhz DDR4 memory came out
some guy said;
"For buyers out there, let it be known that this is a base 2400mhz (overclockable to 3200mhz). It is what it is with Ram marketing, what they say as 3200mhz is actually the largest overclockable possibility.(Similar to 2666mhz which has a base clock of 2133mhz as an example). As of this writing, with my Ryzen 2600 and B450M Mortar motherboard, the highest stable frequency I got is 2933mhz.
I'm still researching more about the timings and latencies to get the right overclock mix but for new buyers out there, I would say to know your stuff before buying this item and to place expectations on the level as this is an item that can be listed as "you got what you pay for" thing. Heatspreaders are obviously cheap, made with cheap aluminum, the sort that you can tell you can buy that with your local aluminum and glass makers. Overall, the kit is good (not great). For buyers, research thoroughly how to overclock this ram. (Ram overclocking I found, is more complicated than CPU overclocking) " in regards to the ram mention above.
other than that I've searched some more
T-Force 16GB 8GBX2 DDR4 2666 Delta Black RGB RAM