I would not buy a X570 board unless you need multiple PCIE 4.0 SSDs. You can get very well featured B550 boards < $180 such as
* ~$160 MSI B550M Mortar (highest rated on Hardwareunboxed/techspot for <$160), $150 B550 Gaming Plus (note cheaper ALC892 audio codec , 1G LAN) , ~$180 B550 Tomahawk (if you plan on getting 16 core in future with overclock)
* ~$130 Gigabyte B550M Aorus Pro-P (not regular mATX Pro , the new one with 10 powerstages for CPU and 2.5G LAN on box which is **B08L74NCPQ** on Amazon) , ~$155 B550 Aorus Elite , ~$170 Aorus Pro if looking at 16 cores in future
* ~$150 Asus TUF GAMING B550M-PLUS , $185 for B550-F GAMING only if you plan on 16 cores
* ~$175 ASRock B550 Steel Legend
Plus you won't need to worry at all about the chipset fan on basically every X570 board.
I also would not get a SSD smaller than 500GB. There's NvMe drives that are running ~$70 for 500GB with close to top tier performance such as Hynix P31. , let alone slower SATA (Crucial MX500 or Samsung 850 evo / 860 evo for example) and QLC based NvMe drives such as Crucial P1 / Intel 660p.
There's supposedly a Ryzen 5 5600 non-x coming in 2021 for ~$220 so if your budget is tight I would wait.
Ryzen memory compatibility has matured a lot since the first gen. You can get 3600 CL16 or 3600 CL 18 and be fine , you don't need 3200C14 or 3800 MT/s.
see https://www.techspot.com/article/2140-ryzen-5000-memory-performance/
I also would not get any Navi-based AMD GPU because up til recently there was non-existent DX9 support which meant people were forced to use dx9 to d12 conversions or dxvk for Linux. The RTX cards from Nvidia whether they are Turing 2000 series or Ampere 3000 series have had better support for legacy titles. Would be looking at ~$220 GTX 1660 Super at a minimum, maybe RTX 2060 Super (basically RTX 2070) if you can get it non-gouged (it's supposed to be around $330-380 not $600) or RTX 3060 / RTX 3050 Ti when it comes out for two monitors at 2k (1440p) if you intend to turn up settings. GTX 1650 Super / GTX 1660 are generally for 1080p.
* GALAX's internal roadmap had RTX 3060 positioned near RTX 2080.