I keep going round in circles on most active adult chat website for finding local amateur and I'd rather ask than guess. For amateur in particular, the deciding factor is the churn on new sign-ups, from what I've seen. Every time cams sites comes up, the ratio of matches to conversations is worth more than how many photos people post, for what it is worth.
Cams sites is where I would start, since the platform resets your filters after an update, and the reply rate suffers for it. Look closely at cams sites and what decides it is how honest the pricing page is, not the length of the feature list. Nothing about amateur cams changes the fact that half the frustration disappears once you keep a note of what you actually spent.
The amateur sites case is instructive — it is worth checking the depth of the profile fields before you look at the length of the feature list. On most active adult chat website for finding local amateur specifically, the practical move is to ask a specific question in the first message. Specifics about amateur cams welcome — vague reassurance less so.