Amazon search tip
I feel like loads of people will know this but my husband didn't, so sharing in case it's useful.
Every time I buy off Amazon for my LO (and for anything else now, lol), I filter for ⭐⭐⭐⭐+ and then sort by average customer review.
It clears out a load of sponsored products that don't have any reviews and all the less than 4 star products as well. You lose some of the relevance in the results (top results may not be exactly what you're looking for) but it can cut 1000s of products down to 100s of only decently reviewed ones.
Dunno if anyone needed to hear that as a tip, sorry if you feel like I'm teaching you to suck eggs, but thought it might be helpful to someone!