Welcome to the forums!
Congrats on the purchase of the Corolla. It'll be considerably different to work on than the Subarus you're used to

. The 4A-GE silvertop swap is quite a popular choice, and performs really well in such a lightweight car. A 4A-FE or 7A-FE is a good place to start though if money is tight. You could even choose to go down the 7A-GE route. There's plenty of information available here, so I'm sure you'll learn a lot in regards to the swap. If you have any questions about the site, just let me or one of the other staff members know
Enjoy, and good luck with the swap!