Entry Doors For English Basement

We are renovating our English basement (partially below grade) in our brownstone to make it liveable space.
We need to replace the entry door in the front as well as the rear in laundry room going into the garden. Both will have a security door. As it’s not the primary floor we don’t need top of the line, but we want good quality doors that are energy efficient. We want 3/4 or full glass doors to let light in.

Should we go with steel or fiberglass?
Recommendations for brands and/or dealers here?

Also- any recommendations for security doors as HomeDepot/Loews are not real security doors.

Thanks in advance for any info and recommendations!