Hi GrantArmstrong,
Thank you for reaching out to Microsoft Community.
Surface series has its own unique individual features that would fit on your lifestyle or where you use the device for. If you are always on the go where a portable device is needed but does not run very high performing apps, Surface Go 2 would be perfect. If you need more power, more productivity and larger screen, you may go for the Surface Pro 4. Though Surface Pro 4 is not available from the Microsoft Store Online anymore, you may also want to check our Surface Pro 5thgen, Surface Pro 6 and the new Surface Pro 7 which starts at 745.99USD.
Again, it all boils down to which Surface device would fit for you.
If this answer your question, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.
Kind Regards,
Marrion Y.