Some possible thoughts so far:
-It will take a little bit of dedication/time to win Zeeg and Prac fully over to becoming familiars. So far you managed to convince them into your familiar plane space as a safe healing place from Lyzolda.
-If the time and energy is taken to create a bond/training with them, you would get this spell "Flock of Familiars".
-The spell would be slightly different. Your regular familiar would be your primary still and you can continue to use them like normal. But to summon Zeeg and Prac, you would need to cast Flock of Familiars as a ritual. (it's only 1 min) and they can only stay out for an hour. (at least at the start, TBD later)
https://www.dndbeyond.com/spells/flock-of-familiars