If you want to do raid without elite boosts, even if it’s very difficult currently since in the game the bases layouts are projected to support Elite Boosts troops/tower in mid-high level bases and no more normal troops, i suggest you to use Knight, Froster and Arblaster always in your arsenal.
Knight not as main protagonist but as alternative in the meantime Froster and Arblaster thanks to their high range do damage to the other opposite enemies units. Best thing is use it with Shield spell and stay also in the center of this nice group of knights to avoid some hits by towers or other things. You will see also that more knights you have in your raids spawned less damage also you will receive from other things since your knights will protect you as second shield.
Froster has been always the best units that can be used on both side (attack and defence): in attack because it slows down everything (towers, enemies’ troops, blockade) and in defence is pretty good put it in each wave in a way to make lose some few seconds to the king. However in attack is prefarable use Shield or Heal Spell on it due to its low health and high vulnerability to various damage types. Also thanks to its low morale points (only 3 to spawn it) it a good unit to use!
Arblaster has the same problem with Froster that is the health and various weakness especially poison, you will need only a shot of mortar and all your arblaster die in 1 hit so it’s prefarable also in this case use as spell a nice Shield to protect it more and do live longer it. But thanks to its high range (5.5) can be used especially on the chokepoints you can find in most of bases currently (for example L shape design, N bases, etc.)
So i sugges you these 3 troops (Knight, Froster, Arblaster) to do some raids, however you will find unfortunately that will be difficult also with them sometimes since as said at start now elite boosts take the command and it’s difficult win elite boosts bases without elite boosts. You have to play with same coin now