https://www.cardboardconnection.com/2018-panini-select-football-nfl-cards
Just a friendly reminder, the base set consists of three 100 card subsets (Base Concourse cards 1-100, Base Premier Level cards 101-200, and Base Field Level 201-300).
Panini Select seems to be a set where subsets get duplicated and some subsets are incorrectly included in parallels. For example 2017 Panini Select - Light Blue Prizm Die-Cut should only have 100 cards in the set. The Light Blue Prizm Die-Cut only occurs in the Premier Level subset parallel.
Concourse PRIZM PARALLELS: Silver, Zebra SSP, Tri-Color #/199, Blue #/175, Maroon #/99, White #/75, Orange #/49, Tie-Dye #/25, Gold #/10, Neon Orange Pulsar FOTL #/9, Green #/5, Black 1/1.
Premier Level PRIZM PARALLELS: Silver, Tri-Color #/199. DIE-CUT PRIZM PARALLELS: Zebra SSP, Light Blue #/99, Purple #/75, Neon Green #/49, Tie-Dye #/25, Gold #/10, Neon Orange Pulsar FOTL #/9, Green #/5, Black 1/1.
Field Level PRIZM PARALLELS: Silver, Zebra SSP, Tri-Color #/99, Copper #/75, Red #/49, Tie-Dye #/25, Gold #/10, Neon Orange Pulsar FOTL #/9, Green #/5, Black 1/1.
Based on this information: Silver Prizm and Tri-Color Prizm will be the only Prizm parallels with all 300 cards. All of the Die-Cut Prizm parallels will only have 100 cards in them. Several parallel sets will have 200 cards and some will only have 100.
I hope they fixed the error of having Prizm listed on all of the base card backs this year.
Edit: Went ahead and uploaded the checklist. Several rookies did get a card from each subset. If they had a second or third card, I only added the RC notation to their first card in the set.