It might be a little hard to look at PNP focused multiclassing builds, simply because we have some items that are missing, notably spells like Booming Blade, GFB, and others that are bread and butter for gishes. One of my favorite "min/max" builds was a hexblade/rogue multiclass that used devil sight and darkness, rapier with booming blade that kept enemies under darkness or they took damage by moving, it was actually a pretty broken build that provided real peeling potential on enemies for your companions, it was effectively a control/dps build in and of itself. You couldn't make that build in this game, even with Pact of the Blade/Hexblade, because the booming blade cantrip is missing and that was the key to anchoring enemies in darkness. So, my point is that what might be solid in PNP may not translate due to a variety of missing elements and/or outright changed mechanics, but looking through DD might give you some ideas at least.
True, but the final spell list is still a complete mystery.