what class combo do you suggest?

[Raev]

I feel like in Velious the classes are much more balanced than they were in Kunark.

Druids are junk in Kunark but pretty decent in Velious (POTG, animals in most zones for charm, ATK debuffs, Chloroblast, etc).

Pal/SK/Rng got the elimination of XP penalties, way more spells, faster spellcasting, better skillcaps, and easy-to-obtain super high AC dwarf armor. Combined those are a huge boost.

Mages will (hopefully) get an easier epic quest.

Necros are a mixed boat (practically no undead in velious, zero good spells) but they also benefit from the removal of magic immunity to raid mobs.

TLDR: you really don't have to level War/Mnk/Rog/Enc/Shm/Clr every single time any more.