What SMS apps allow combining conversations from a contact with multiple phones?

[QPhysics137]

Several members of my family have multiple phones (my son the lawyer has an iPhone his firm provides and an iPhone he owns, my daughter has an iPhone and a Note 8 from work). Google's default Messages app shows each of them as two different conversations, and it doesn't show the number next to the icon, so about half the time I want to text them on their work phone, I select their personal phone and they don't always get the text right away...or I text them about something personal/family related and it ends up going to their work phone.
I use an app that groups all the texts to/from one person together and lets me select the phone number to send to before I started typing...but they've "updated" that app to the point it's essentially useless now, so I'm looking for something else. Hangouts used to do the same thing before Google decided to screw everyone over on that app like they have so many others.

Are there any SMS/MMS apps that will let me have all the phones for one person under the same link and let me select which of their numbers I want to send a text to? I've looked on Google Play and searched through ratings sites and forums until my eyes hurt and I can't find anything that does has this obvious (I think) feature.

Thanks!

 

[anon(10614692)]

What device are you referring to? My S10 allows me to select, for example, my wife as a contact and I can then chose if I want to call/text her at work at home or on her mobile. However, these create separate threads as you would expect as 3 different devices are in use. There is no way to amalgamate these.

 

[ManiacJoe]

The SMS app "Texta" will also present all matches for you to choose from.