For baseboard, there are 2 options :

1. Your floor tile as baseboard (most common in bathroom area).

2. Pinewood baseboard is very recommended.

The baseboard\tile quantity is mentioned in your material list, it goes based on LF.

Home depot link :
https://www.homedepot.com/b/Building-Materials-Moulding-Millwork-Moulding-Baseboard/Wood/N-5yc1vZcbjpZ1z0vir2

For a straight and clean look baseboard :

https://www.homedepot.com/s/primed%2520pine%2520board?NCNI-5

Master Building link:
https://www.mastersbp.com/

Master Building has more options for molding since that's what they focus on, they working only with contractors, so if you'd like to use one of their product, just share with us the link\SKU and we'll get it.