Got my A1181 09' MacBook 5,2 running a 500GB SSD, 4GB Ram, and pushed it from the max OS of El Capitan to Mojave with a patched install USB I put together (:
Refurbished Apple MacBook Air Core i5 1.6GHz 4GB RAM 128GB SSD 11 - MC969LL/A - Walmart.com
MacBook 5,1 SSD upgrade - YouTube
Apple A1286 Late 2008 2.4GHz MacBook Pro 5,1 MB470LL/A 2.5 Hard Drive/SSD Drive | eBay
MacBook and MacBook Pro (Non-Retina) SSD Upgrade Bundle – iFixit Store
Buy 13-inch MacBook Pro with M2 chip - Apple
OWC Data Doubler - Replace Mac Optical Drive with an SSD
Apple MacBook Pro (13-inch, Mid 2009) - Macbook Pros - Inspectee - Compare, Filter and Browse
How to Install an SSD / Upgrade Your Hard Drive on a 2010 Unibody MacBook Pro - YouTube
How to use an NVMe drive to upgrade your Mac's SSD | AppleInsider
How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac