I’ll look into what Houston area repeaters use IRLP or EchoLink. It’s not something I’ve done before, but I’d be happy to learn.
Here are the Houston 2m & 70cm "saltgrass" repeaters I scan:
https://repeaterbook.com/repeaters/feature_search.php?system=Saltgrass%20System&state_id=%&type=systems
And these are the Harris county repeaters that I also scan:
https://repeaterbook.com/repeaters/location_search.php?type=county&state_id=48&loc=HarrisIf you aren't familiar with Repeaterbook.com you should look ito it.
I have Echolink on my iPhone and iPad but haven't done anything with it. I better start studying those.

-Blast