Help starting with Dark Eldar

I recently purchased the dark eldar start collecting set, but I wasn't too sure how to equip the units most effectively (Archon, raider, 10 kabalites,3 reavers)
Any help would be greatly appreciated!

Welcome to the forum qazmania and congrats on starting a DE army! Could you let us know what points level you are targeting? The general consensus is to keep upgrades minimal and take as many small units as possible.

Troops units should always have a dedicated transport and generally be taken in units of five. A blaster upgrade can sometimes be useful. Upgrading one to a Sybarite with a Haywire grenade can also be useful. Neither of those upgrades are auto-include though.

So applied to your set, put five warriors in the raider. The Raider should be kept cheap, perhaps a dark lance upgrade. If you can get your hands on a Venom/Raider for the other five that would be best. That would enable you to run two troops units effectively allowing you to make a legal combined arms detachment. If you go for a Venom, upgrading to get the second splinter cannon on it is pretty much an auto-include upgrade.

Cluster Caltrops are pretty much an auto include upgrade for Reavers. A Blaster/Heat Lance can also be useful.

The Archon is a tricky one as he isn't good enough for the points, especially at low points level games.

I would highly recommend episodes 16 and 24 of the splintermind podcast (it has a section on this forum) as well as the Tabletop Tactics and Skaredcast youtube channels for DE tactics and battle reports.

I was aiming for around a 1-1.5k army list.

I wondering whether splinter cannons on the kabalites were worth it, since I saw many people take those instead of blasters like you suggested.

Thanks for showing me the places to look for DE battle reports!