You can connect and manage multiple X accounts through Hookle.
In February 2018, X announced new guidelines to prevent spam violations on X. This means limiting the ability of all third-party services, like Hookle, to simultaneously post or schedule identical content to multiple X accounts.
For this reason, it’s not possible to post identical content simultaneously to several X accounts through Hookle. If you have connected several X accounts to Hookle, you can choose which one you want to send your post to. When composing a new post, click the add account button (+) and select a X account you want to send your post to. Note that you can only select 1 X account at a time.
Note that with copy-as-a-new-post feature you can always copy the message as a template if you need to post a similar message to another X account.