I unload all the engines I don’t use (which is all except 3 or 4) then load in synth samples which have enough scope to shape a bit using filter, envelope, LFO etc.
And I also load hihat track and wave track with tone kits, which allows for more additional sounds, for example short plucks, arp sounds, acid, staccato bass, etc.
Here is a link to one of my sample packs which use these techniques Operator202 MC-202 sample pack for OP-1 and OP-Z - Payhip
Demos here:
That was all done with the same sample pack (actually a portion of it) no synth engines, you can load quite a lot in there, but the whole pack won’t fit, IIRC around 30 synth samples, 30 tone kits and 3 drum kits were what I loaded in.