I've always liked White Forest, but I was slightly disappointed when they were mostly just used as an engine in Azamina decks. But in Genesys, what with the entire Azamina AND Sinful Spoils packages being pointed to the moon, this leaves White Forest ripe to be the dope synchro engine I always thought it was. The new Angelechy cards are interesting; Synchros that cheat themselves as continuous spells with floodgate effects. "Continuous Spells", indeed!
The Toy Box cards were an early adoption into the White Forest fold, but have since sort of fallen by the wayside. But they're so cool! Soldier can search either of Rucia or Silvy after being used up for Astellar or Elzette's effects. Or, in a pinch, you can search Maiden of the Millennium Moon, who can also set herself as a spell. Moon Maiden can also protect your White Forest Synchros from targeting, which is a nice bonus.
Rciela can search ANY Light Spellcaster, so Veiler is an obvious pick. Broomy is in here for the same reason, if only for the fact that it can summon an extra body from hand if it gets clogged. These certainly aren't the only options, either. I had flirted with the idea of putting the Regulus Endymion engine in here too. Another Level 4 body who searches a continuous spell on summon, which is further fodder for the girlies.
In the Extra, the Angelechy monsters will rarely be summoned properly. Mostly, it's summoning Enlisted off of Problem (which Disturbance can search, after getting pitched for a White Forest effect), setting Bastion, and then Shatranga. But Enlisted is also a tuner, so it doesn't run out of utility once it's on board. The other cool engine in here is the Stardust stuff. Summon Accel Synchro (which can revive Enlisted from the GY if need be), tribute it on the opponent's turn to summon OG Stardust Dragon, and then you can summon using ANY monsters you control; it needn't involve the newly summoned Stardust. White Forest synchro and a leftover Toy or Moon Maiden? Summon Chaos Angel. Main deck White Forest monsters? Summon Silvera and Book of Moon their whole board! Or, as will often be the case, take Enlisted and Stardust to summon Shooting Star Dragon for a destruction negation.