There are SSDs on the market that use all of their TLC flash as SLC cache, so you can almost use them as SLC drives if you partition them to leave 2/3 empty.
Eg the ADATA XPG SX8200. Look for whole drive fill speed benchmarks, if they use the whole drive as cache, the first third is fast (usually the SLC area is much smaller).
Eg the ADATA XPG SX8200. Look for whole drive fill speed benchmarks, if they use the whole drive as cache, the first third is fast (usually the SLC area is much smaller).