MagiStream

i am on part 1 of the stream quest and need help on finding the eggs i need

vosmari egg, a moss snail egg, and a vasant beetle egg.

Vosmari egg can be found in the Shop Remy's Inn
Moss snail and vasant beetles are in the Stream
Eggs could also be bred, but they must be unnamed, unfrozen and unlineaged either way

tysm im still getting the hang of this game and also when can i hold more then 4 eggs at a time or can i only hold 4 no matter what i do

Right, you can only care for four eggs at a time, with rare exceptions. Notably, you are able to purchase two additional eggs from the Donation Shop, giving you a total of six: four eggs and two donation eggs. Does that make sense?

yes