If you’re in USA, Canada, Australia or UK, check out MySudo.

They have three different plans starting at $19.99 USD (year) for one VOIP phone number; when my subscription expires, I plan on renewing and possibly upgrading.

There’s a Free version but it’s just email and no phone number. They’re cheaper than Hushed and more reliable.

Avoid TextNow, it works fine until you need it or expecting something important (voicemail or text) and that’s when they lock you out until you pay up.

Note: I didn’t read the fine print or ToS for MySudo UK so I don’t know what they need from you if you sign up.