A lot of reviews for Samsung branded chargers claim they stop working after a month too.

IMO your best bet is to get something like this https://www.amazon.com/gp/product/B08PG1BJ5T and some new cables to go along with them. RavPower makes very reliable chargers, I have these all over my house and they've been working great. Some of them are over a year old at this point and they still work like new.

A lot of people swear by Anker, and Anker makes good stuff too. However RavPower is just a little bit more reliable in my experience while also being a little bit better priced.