Because I try to plan for future. 8 GB is becoming a serious problem for newest games these days. Of course, this is my point of view.
If you want to play older games like Dota2, then 8 GB is perfectly fine.
If you really don't care about any performance progress and want to substitute current RTX 2060:
RX 6600 or RTX 2070
If you want to improve performance further:
RX 7600
If you intend do play older games at 1080p and you want to purchase a new card, I'd go for RX 7600 Steel Legend, it's cool and quiet card.
Once again, I'm saying I'd go for used RX 6700 XT. At 160-170 €, it's the best you can get (peformance per $).
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