I think you can get TPA out of training. I know of new hires in the February & March classes that wanted TPA and got it out of training.
On average, about half the TPA lines are day trips only. The rest of the lines are a combination of 1 day trips and or 2 day trips.
Training is about 8 weeks straight through. Four weeks ground school in FLL and then sims in MIA.
Refer to my earlier post:
Silver Airways
I am MCO based, but the TPA pilots I know like having day trips. Most pilots at Silver are here for QOL either for a career or while they build time to get to the next level. Silver has a Pathway program with Frontier and I know of a few CA who have been hired by Frontier in the last few months. PM me if have any other questions.