All have one's say synonyms

verb have one's say

• assert — If someone asserts a fact or belief, they state it firmly.
• come out with — If you come out with a remark, especially a surprising one, you make it.
• declare — If you declare that something is true, you say that it is true in a firm, deliberate way. You can also declare an attitude or intention.
• insist — to be emphatic, firm, or resolute on some matter of desire, demand, intention, etc.: He insists on checking every shipment.
• sound off — the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium.
• stand up for — (of a person) to be in an upright position on the feet.
• speak one's mind — give one's frank opinion