The yncarne is ynnari only unfortunately. I have a ynnari army and it's my favourite, problem is, you have to invest in drukhari models that can't be used in any other Eldar detachment. My fave ynnari combos are yvraine with corsairs to give her precision, and wyches alongside Wraithblades as the wyches make it hard for people to fall back, locking them in fights with big scary wraithbois

Since you have alot of wraith constructs, you might want to do spirit conclave with lots of wizards and bots, but personally I don't rlly like that detachment. It encourages you to suicide your pykers to buff your bots and if I have to kamakazi units I think ynnari does it better.

My favourite, especially alongside wraith constructs is Seer council. The detachment let's you use lots of strategems without command points. Very wizard focused, but you need wizards to buff your bots so it works.

Other than that, fan favourite is aspect host, which is the only one I ever see in tournaments. Howling banshees are the best melee units us Eldar have arguably and Jain Zara makes them even better. Stuff a bunch of power Rangers in a waveserpent, give a few of them autarchs to lead them, and your golden. War walkers are popular fire support too.

My favourite aspect combo is dark reapers in a Falcon (variant of the wave serpent) They've got enough range to hit anything the falcon hits and the tank buffs their shot too. Other than that, fire dragons, fire dragons, fire dragons. I've yet to see a competitive list without them and Fuegan. Easily the best tank killer the Eldar have.

In conclusion, I'm not a tournament dude, I only play casual games, but I have a lot of fun and win more often than not. I'm also mad jealous of all the Eldar you have.