Any standard 2.5" SATA SSD will work.  You may need a spacer to install the SSD in place of the hard drive, as the SSD will be slimmer than the 9.5 mm drive the system is designed to handle.  
I'm shopping for an SSD for my Dell XPS m1530.Do I need to limit my search to any specific specs?Should I be free to get any of the basic, inexpensive SSD's i might find available at most distributors (Jan, 2022)? 
SSD for XPS m1530