I use DxO PL5 and have since I started out in photography again maybe 7 years ago.
I like that what you buy you can keep and use for ever (dislike subscription).
One thing to note about DxO PL is that you skip upgrading every other time , so go from version 5 to 7 and 7 to 9 etc. (Hope this is still true!)
This keeps the yearly cost at about half. (Not that I have ever skipped an update, but you can do it.)
Oh, and if you go for DxO PL take the Elite version, more expensive but DeepPRIME NR among other things are not available in the Essential version.
I can also recommend their DxO Viewpoint SW and the DxO Filmpack, buying them as package gets you a good discount.
And of course you will want that DxO NIK Collection package also.
But if you miss upgrading it is buy new again. (Your yearly cost will take a hit if you miss updating, but it evens out.)
I do recommend to trial DxO PL5 again!