Hi @scandalxk
Providing recommendations on ifixit is usually discouraged as it is too subjective and may be misconstrued as spam.
Perhaps the best that you can do is check the warranty on the battery provided by the seller and also check online for reviews of the seller and then go with your instincts.
Here's an example of 3 suppliers where the first 2 give a 12 month warranty but have poor reviews and the 3rd gives only a 9 month warranty but has better reviews. The cost of the battery from all 3 suppliers is very similar.
[https://uk.trustpilot.com/review/hplaptopbattery.co.uk?stars=1|supplier 1], [https://uk.trustpilot.com/review/shopping-batteries.co.uk|supplier 2], [https://uk.trustpilot.com/review/laptop-battery.org.uk|supplier 3]
Moderator.