BX500 is probably SM2259XT (DRAM-less) with 96L QLC at 1TB by now. Not sure if Crucial intends to upgrade it to their own, newer QLC. The 960GB model was previously TLC, although if I recall correctly they intended to phase that capacity out.

The BX500 and similar drives are okay, but not really something I'd like to invest in - DRAM-less and QLC in SATA. For capacity you have the 870 QVO (w/DRAM). I'd probably rather take the 960GB (TLC) SN350 at $74.98 if you can manage another NVMe M.2, or for SATA wait for a sale on something with DRAM and preferably TLC. There are also some DRAM-less TLC drives like the 960GB Mushkin Source II, also, although it may be tough to find these in stock. Not sure on what's in the SanDisk SSD Plus these days at 1TB...

The 1TB Mushkin Source II is at Amazon for $77.99 and says TLC - also says that at their site. If accurate, good get.