An often overlooked option:
Any mobile device with a built-in optical drive can be equipped with an additional data storage device instead. CDs and DVDs are no longer really used these days, and more storage space is always useful.
This is so easy to do because optical drives have long used the “Slimline” connection internally, and since 2.5″ data carriers such as optical drives only need 5 volts to work, they can be easily adapted to function. In principle, this Slimline connection is a greatly shortened version of the standard SATA connection.
Lenovo, for example, originally designed the so-called “UltraBay” for this purpose. With even more possibilities. This type of adapter* should fit into almost any standard notebook with an optical drive:
You can install any type of 2.5″ SSD or hard drive there, but you have to pay attention to the standard height.
Hard drives are also available in thicknesses greater than “normal”!