I have a spread I like to use! I start with a signifier to connect with the universe and lock in the idea of a soulmate or twin flame. I usually pick Judgment or The World.
Then I pull three cards to get a feel for the qualities my soulmate might have. After that I pull one card to show what steps I need to take to move toward being united with them.
For timing, put that last card back in the deck, shuffle, and split the deck into three piles. If the card ends up in the first pile, you’ve already met them; second pile means you’ll meet soon; third pile points to further down the road.
Tweak the spread to suit whatever you’re curious about. Break your main question into smaller ones and go from there.