My connection has been bad lately so I wanted to go for a paid one. I saw someone post a couple weeks ago the relays the connected to. They highlighted the paid ones. I picked one, went to the website, paid the 6969 sats... and it never accepted my payment, it just said "waiting on payment" and then after 5 minutes it said invoice expired.
It was Nostr.plebchain.org just so everyone knows.
I'll find a reputable one here though.
There was also this post in the past week, which may have additional candidates:
Nostr Paid Relays #142054
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