I recommend https://www.openphone.co/

Disclosure: No affiliation other than as a satisfied customer.

EDIT: @tapvt: They support IVR, if you have questions, their team is responsive and top notch if you reach out to them. I use them to replace a Google Voice personal number and for several business ventures.

https://help.openphone.co/en/articles/4034271-how-to-set-up-...

https://www.openphone.co/blog/how-to-get-an-auto-attendant-f...