For monitors at 30"+ size, I would recommend either a 1440p or 2160p monitor as at that size you really gonna a sharper picture if you sit less than 2 meters away from your screen. If you pick 1440p or 2160p (also known as 4k) depends on your budget, if your current graphics card can handle running the games you want at that resolution and if you think 1440p or maybe even 1080p look good enough at 30"+ for you. Now there's allot of different monitor panel types you can learn about the most common ones by watching this:
For SSDs if your current hard drive is the same size or smaller than the SSD you planning to buy and you don't want to reinstall windows and just want a full copy of your current hard drive? Then the only choice is Samsung 850 EVO as Samsung are the only ones with hasslefree cloning software that can clone your current hard drive to the SSD. Now if you don't mind doing a full Windows reinstall i would also recommend any these models just pick whichever is the cheapest for the size you want as the performance difference between them is so small it is not really noticeable:
WD Blue SSD
One last thing to watch out for is if you have a motherboard that supports M.2 SSDs that unless the SSDs have NVMe in the written somewhere they are not faster than SATA SSDs.
If you have any more questions i will do my best to answer them