HiĀ LindaCoats1,
Thank you for reaching out Microsoft Community.
I have heard some of the device users using Bluestacks emulator to run an android app on a Surface device and this requires enough space so you would be able to install those apps you would like to run on a Surface device. You can simply search the emulator mentioned and look for the download button to install it on your Surface device.
If this answers your question, feel free to mark this post as an answer. Otherwise, don't hesitate to respond to this thread if you need further assistance.
Kind Regards,
Crest_Z