Free Templates:
Smith: https://webflow.com/templates/html/smith-portfolio-website-template appears to be excellent. Recent students found it the easiest template to use.
https://velocity-free-template.webflow.io/ Very good for portfolio
https://minimaltemplate-v1.webflow.io/ Would work great for portfolios
https://biznus-template.webflow.io/ A one page template, perhaps not as good as others
https://fitnesso.webflow.io/ Fitness template. Could work well, great features
Paid templates:
http://akin-template.webflow.io/ $49 – Appears very good for UX
https://craig-roush-portfolio-template.webflow.io/ $34 – Good. Listed in 15 best templates
Squarespace Free Templates
Squarespace Free Templates
https://www.squarespace.com/templates/novo-demo Novo: Nicely designed
Also
https://sackett-demo.squarespace.com/ Sackett: Could work for students
You can find many more at
https://www.squarespace.com/templates/browse/topic/popular-designs