I have several of these for various mobile devices: 128gb microsd – https://www.amazon.com/gp/product/B00T9QONOU/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
They aren’t fast but I tested a Lexar 128GB that I use in my phone for 4K video and it didn’t do much better, though it really isn’t that much better of a card. Maybe a higher class card would be significantly faster but I don’t have one to test that out. There are a few 200gb and even 256gb cards out now, though, so prices are coming down.
Check the stickies for help getting that sized card working in Android, too, if you plan on needing it there.