Both tribes of clerics and zombies excel at reanimation and you may as well play into it, with that in mind consider the following, Bishop of Rebirth, Custodi Soulcaller, Drana, the Last Bloodchief, Mikaeus, the Unhallowed, Orah, Skyclave Hierophant, Order of Whiteclay, Whisper, Blood Liturgist and Draugr Necromancer although you would need to add snow lands for that.

Useful in tribe creatures: Custodi Lich, Evangel of Heliod, Taborax, Hope's Demise and Custodi Soulbinders. This is hardly a comprehensive list but just a few ideas.

Some considerations for your deck, first being Lifeline for turning your commander into an exile and life gain machine and Ayli exile limits your opponents benefit greatly. Second is Gift of Immortality with Heliod's Pilgrim and or Moon-Blessed Cleric to search it up while being in tribe. Gift essentially gives you a free creature for Ayli to use once on every players turn, and it makes Sun Titan usable for sacrifice costs an unlimited times a turn, like perhaps with Ashnod's Altar.

I don't know what your experience is with blockers being an issue killing your commander, but if it crops up often Reconnaissance might be worthwhile as it allows you to get the attack trigger and protect her from any blockers. As a bonus you can remove your attacking creatures from combat AFTER damage is dealt, like say the end of combat step, essentially giving your creatures vigilance all for .