What test brand is best after FRER?

I've had 11 positive tests out of 14 on this brand in the past 2 months. Each time I get bloods drawn, my hcg level is 2 (previous ectopics so bloods are drawn the moment I have a positive).

Today my OBGYN said not to use that brand anymore as it's not just me experiencing these false results but many other women in the clinic too. The need for hcg blood results has increased 40% in the past 12 months because of false positives/strong indents on them. (At least according to the pathologist who drew bloods).

But I've always trusted FRER as a go to option. Now I have no clue what brand to stock up on and it's causing me anxiety as I prepare for next month.

Any feedback on tests you've used and trust would be greatly appreciated 💗