5 seats - North America to Europe - Flexible, need some guidance

Looking to travel in the fall to Europe and need 5 seats. 1 is for my 2 year old, which I'm assuming needs a separate seat.

We have completely flexible dates, and are open to going somewhere like Dubai for a layover.

Would like to try Emirates J/F, Qsuites or Lufthansa First. Ideally would like to avoid British/American, United, etc. as have done these plenty and want parents to experience a nicer flight. Also open to throwing some cash, does not need to be entirely points.

Using Seats.aero, I've looked at:

Fifth freedom Emirates from JFK/EWR to ATH seems awesome, but don't like the idea of leaving at midnight and it's a shorter flight. Just can't seem to find many open options from IAH or DFW to Europe.

Any suggestions?