Are problem solver, Passionate, selling products dead in 2019?

I was looking for products which are passionate, problem solver and hot seling.
But what I found that in sites like aliexpress, wish, wanelo that maximum hot selling products are cloting, bunch of underwears, electric products etc without any passion and problem solving.
I was mainly looking for passionate products based on some evergreen niches like survival, fishing, hunting etc.
But I see only one or two products are high selling from these niches.

Now I am really confused. should I select the whole niche for one-or two products or should I go for a general store for different products on different niches

Please suggest me

Thanks