There is an RPG maker forum post on this site that works (at least for me):
https://f95zone.to/threads/rpg-maker-save-editors.51/ I also have one from a different site that seems to be an updated version but it should be the same >.>
TiTsEd seems to have had an update 3 days ago so I recommend you try that editor out too =w=
The standalone editors seems to be just .sol editors with a cleaner UI, alternative sol editors I know are:
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(this is more of a "take apart" editor that requires you to know what variables you need to edit and also adobe air X.x)
and
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that you mentioned earlier, which has more strings that could help you know which values you want to change
If you want to try other methods,the actual spot for the saves can be found here (for Win 10): Users\[User-device-name]\AppData\Roaming\Macromedia\Flash Player\#SharedObjects\JNN3PASS\localhost
I recommend making a backup of all the saves first before messing with the saves tho <.<"
Hope that helps at least a little bit ;3