Within Indiana, amateur radio digital voice is fragmented.
There are some DMR repeaters around, but their connectivity to the rest of the DMR network seems to come and go. Admittedly, I'm not a DMR user, so I may not be aware of all the goings-on. I think DMR's popularity is rooted in the availability of cheap, Chinese DMR radios. Some are good, some are bad. Just read the comments in this forum:
Budget and Entry Level Transceivers
There are many repeaters listed Yaesu System Fusion or WIRES-X. That may be misleading in that lots of clubs and individual repeater operators purchased Yaesu repeaters under "club pricing" and used them to replace their aging analog repeaters. However, many of these repeaters are locked in analog mode. You'll need to find out if the repeaters around you actually have network connectivity.
D-STAR repeaters are getting to be pretty rare.
There are a handful of P25 repeaters around.
There are a few mixed-mode digital voice repeaters around that will operate in DMR, D-STAR, NXDN, P25, and/or Yaesu System Fusion. You'll probably need local knowledge to find them.
With a hotspot, you can use just about any mode and talk to just about anywhere that the Internet can take you.