What upgrade to if I liked the Steelseries Rival 300?

I've used the Steelseries Rival 300 for almost 8 years and never even considered switching to anything else, I liked it that much. Now it's wearing down and I'm also slowly switching to a wireless setup so I want to upgrade. What wireless mouse would you recommend I should consider getting off of this background? I'm also open to trying different stuff too though (and I don't mind dropping some extra bucks if it means quality and longevity)

Thanks a lot!