SEO Boosting Landing Pages Creation

1-Current website Allnursing.ca (wordpress)
2- I have 2 extra domains that have relevant keywords. I need to create a landing page to bring me to page 1 on google.
Www.homecarevancouer.ca
Www.homecarenursing.ca

Currently 2 domains are forwarded to Allnursing.ca but they need have own landing page that takes the person to Allnursing.ca content.

Also current wordpress theme may need to be changed as it is slow to load.

Relevant keywords are, home care, nursing care, caregivers, etc