I'm starting to look around as well, but seeing the DDR4 prices still so inflated is killing my build enthusiasm. Trying to buy what I want on a budget is a bad way to start, as I'd be better served selling my current pile of leftover hardware to get a better idea of what I can actually buy, and re-using my case, PSU, and 290x to save on the build cost.
Ideally, I'd be buying as Asus Prime x470 Pro with a Ryzen 2600 at MC, then adding a Samsung 960 Evo 500GB NVMe and whatever RAM is on sale at the time. But I really can't take advantage of the X470, so I'd then go with the MSI B450 Gaming Pro Carbon and the same 2600. They are currently OOS at MC for my location. With the RAM still so high, I'm now looking at ditching the NVMe 960 purchase and re-using my Samsung Evo 850 SATA.
I had $110 budgeted for 2x8GB sticks, but, again, if I had my choice, I'd pair up the snazzy Team T-Force or the G.Skill TridentZ RGB sticks with the X470's heatsink RGB .. it's a blingy color match pair that looks very coordinated together. Worst part is .. I don't really like RGB bling to start with (WTF, WT?!?) and my case is tucked away in a hutch and all you ever see is the front of the case peeking out of the door.