Well ARBITRUM use to be one of my Favorite coin back in 2021 because I was expecting this
to be one of the most growing coin in Bull market but I failed https://coinmarketcap.com/currencies/arbitrum/ the chart seemingly
not showing any good any time very soon but its your money so it is up to you.

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And about OP? if you are referring to Optimisim https://coinmarketcap.com/currencies/optimism-ethereum/
Not sure if there are any best  waiting for you , at least not in the  next coming month but let us see this happening in 3rd quarter next year.
Update us to what happened mate.

Wanted also to Add mine like XRP (ripple) because this has been steadying even after winning the case
from US SEC so I believe that in the next Bull run  there are something better coming to this one.