The verdict
For most small B2B teams, I'd start with Rytr. Rytr has a free plan, so you can test it on real work before you commit to anything, and most small teams write many short pieces and need a quicker first draft.
I'd move to Anyword when you run enough paid or email copy that wasting a test costs real money, and you have a team that argues about which variant to run. Then the score earns its place. If you only write a few posts a week, a general assistant such as ChatGPT or Claude is probably enough for either need. Whichever you choose, read the output before it goes out. Short AI copy tends to sound alike after a while.