Idk about individual ones, however you can go by Steam rating.
Options:
a) Add them all and sort them in your Steam library by Steam rating.
b) Only add games with good ratings. There are probably several plugins which can display ratings, ESGST is one of them.
Setting for ESGST: https://www.steamgifts.com/account/settings/profile?esgst=settings&id=gc_r
You can also visit the F2P section of Steam as there might be some games which have always been free and are worth playing.
https://store.steampowered.com/genre/Free%20to%20Play/
https://store.steampowered.com/search/?sort_by=Reviews_DESC&maxprice=free&category1=998&ndl=1
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List of paid-now-free games of 2024 [2023 - 2022 - 2021 - 2020 - 2019]
⚠️ Unless it's relevant, comment on the current year's thread ⚠️
📝 These packages are FreeOnDemand, not NoCost.
📝 I can't track every game, so there are more for sure.
📝 RaChart friendly.
📝 Use ArchiSteamFarm to activate all, using its console or via web.
👉 You can also use ASF AddLicense Helper.
📙 First chapter, prologue or a partial part of a game now free.
📓 DLC now free, even if the base game is not.
📒 Free now, but it won't be in the future.
🆓 Paid elsewhere and now free on Steam, or it is free even if it indicates otherwise.
🚫 It's no longer free.
⛔ Removed, no longer available.
💲 Converted to subscription model.
🥽 VR Only.
🔞 18+ Only.
📰 Software now free
🎮 Controller required
🎵 Soundtrack DLC, either newly free or for a newly-free game
March 2024
!addlicense ASF 1023512,1023519,1023590,1023672,1024795,1025562,1025566,1025581,1025582,1025645,1025699,1025709,1025751,1025756,1026374,1026378,1027058,1027059,1027469,1027612,1028787,1029548,1029552,1029576,1029605,1029918,1030362,1030404,1031548,1033012,1034313,1034544,1037768,1038293,1038396,1038450,1038457,1038639,1038864,1038892,1039624,1039733
DLC:
!addlicense ASF 1035641,1035086
January 2024
!addlicense ASF 988948,990260,990329,990333,990747,990908,990909,990941,991244,991245,991361,991427,991437,992676,992680,992697,993121,993348,993374,993375,993416,993936,994010,994513,994654,995178,995179,995791,995807,995808,995908,996773,997421,998133,998317,998883,1000567,992139,1001710,1001880,1002072,1002107,1002543,1002571,1003208,1004535,1005992,1006002,1006047,992572
DLC:
!addlicense ASF 998887
February 2024
!addlicense ASF 1006606,1006613,1006617,1006666,1006859,1006906,1007554,110138,1007658,1007974,1008928,1009420,1009607,1009628,1010542,1010909,1010935,1011228,1011438,1011461,1011551,1011595,1012158,1013362,1013528,1013984,1014093,1014553,1014784,1015126,1015285,1015324,1016396,1016588,1017062,1017069,1017153,1017280,1017841,1018303,1018304,1018384,1019126,1019659,1020455,1020462,1021443,1021565,1021598,1021638,1022111,1022775,1023033
DLC:
!addlicense ASF 1009600,947799,1021564,1022124
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