If you have an Apple and iPhone, it’s fairly simple and it’s all tied to your iPhone phone number. I assume you probably don’t though. If you have an Android and a PC, Google Messages for Web works as well. Now, if you have a PC and an iPhone, maybe a messaging service like Google Voice or Skype.
I work all day on my desktop/laptop.
I can see texts and also reply to them directly from my keyboard without picking up my phone.
(This is using a windows computer)
The app is called "Phone Link" for Windows
For Android Devices:
Open the Phone Link app on your Windows PC. If not installed, download it from the Microsoft Store.
On your Android device, download the Link to Windows app from the Google Play Store (preinstalled on select Samsung and HONOR devices).
Ensure both your PC and Android device are connected to the same Wi-Fi network.
Sign in to both apps using the same Microsoft account.
On your PC, select Android and follow the on-screen instructions to display a QR code.
Open the Link to Windows app on your phone and scan the QR code displayed on your PC.
Grant the necessary permissions on your Android device to enable features like notifications, calls, and messages.
Voip.ms (https://voip.ms) will let you sign up for a phone number and have any text messages that are sent to it forwarded to an email address of your choice.
Unfortunately it won't work in the opposite direction -- in order to reply to text messages you'll need to log into their website and use the website to send the text messages.
If you have an android phone, open your chrome browser and type messages.google.com. Have your phone handy the first time because you will need to scan the QR code. Then you can just leave that window open on your computer and use it to send and receive texts. I hate texting on a phone keyboeard so I do all of my texting that I can from the computer. Also, is your disability does not affect your speach then you can use your phone to do voice to text is you cannot navigate the buttons or see the keys.
I know apple has a similar situation but I am a google girl. Maybe an Apple girl can walk you through the steps to set up the texting from the computer if that is what you have.
Also, Google voice was mentioned. I also have a window open on my computer for my google voice app. So I am able to text from my computer with my regular number and my google number.
WhatsApp can be installed on a PC or a Mac and you use it with your mobile’s phone number. Downside is the recipient also has to use WhatsApp.
Someone else mentioned Google Voice. GV can send text messages from its web site and nothing special is required of the recipient.