10.13.6 All day Long! Mojave has been soo hit n miss it’s crazy! If you cant or wont goto Catalina then use HS as long as possible. Why would Mojave be ”better” for SSD’s!? We use ONLY SSD’s in the studio and no issues what so ever.
Forget Mojave and go for HS and when you NEED to go up then ”that day that sorrow”
We have our old 3 trashcans reverted back to 10.13.6 as both Mojave and Catalina was soso and we have our 2 new Mac Pro coming with Catalina so probably gotta start using when they arrive. 28 Core 384GB and filled with SSD’s so i gather they will be quite the monsters compared to our 12 core Trashcans.