Does she like to tinker and engineer for hours? Then an ender like printer is golden and cheap. Does she just like to print by pressing 3 buttons and not work with the printer but the prints then there are out of the box printers for that as well. Really depends. Does she want insane speed? Corexy also exists. Theres a printer for every use.

Small adapter that clips into the premade holes and has screw attachments for the fan. Dont have the unit for design purposes but could print the part (mid europe)

So honestly, they are all pretty similar. If its your first printer there should be other things to consider like are you oke with 23x23cm build plate or do you need 30x30 with slower overall speed? Do you actually want a bedslinger? Do you want dual extrusion? But Klipper or Marlin? Who cares, you can change anytime. Depending on board and driver both have working linear/pressure advance, you will find advocates for both. Also dont underestimate how established the models community is. Especially the ender family has a giant community when it comes to fw help or upgrading and redesigning your printer. Finding fitting parts on thingi becomes a breeze. This can be quite frustrating for printers with lower market share. Im not gonna give any direct recommendation here just saying that the firmware should not be a buying criteria. Good luck on your journey!