Just be aware that for a period of time the MX 500 had many reports of high failure rate. Not sure if it was due to a change of components or firmware.
Example post about it: https://www.reddit.com/r/sysadmin/comments/whr5ek/crucial_mx500_historically_good_recent_batches/
An article (In Portuguese).
And another post about it.
Personally I use Newmaxx’s site and spreadsheet which has more indepth information about the SSDs like their controllers and NAND type - https://borecraft.com/
You can also check their subreddit for some reviews and such.
That and some stats from Backblaze and general reviews.
And I use price trackers to make sure I’m getting a good price.
I don’t like going by specific brands, because they all have some less ideal models and some of them tend to change some of the components after a while.
Just want to add that at the moment AV1 is only beneficial for encoding to lower bitrate videos.
It’s still better to use x265 for high bitrate.