Checking Plugshare for stations along the way is a MUST!
Filter by J1772 and SAE Combo, assuming your vehicle has SAE Combo. If you don't have the orange dust cover under an orange flap covering 2 holes for 2 pins, you do NOT have SAE Combo inlet. If you don't have it, then you'll be limited to level 2 (200 to 240 volt) charging, which is too slow for a road trip.
You REALLY should get accounts on and register methods of payments for all the networks you might be using along the way. Also, getting RFID cards from them would help in addition to installing and logging into their apps.
At minimum, get on ChargePoint, EVgo and Electrify America. Avoid the 24 kW chargers, if you can, they're too slow. Example is these guys: https://www.chargepoint.com/products/commercial/cpe100/
If a location has a low Plugshare score and people not reporting successful charges recently, then you should probably avoid or count on not being able to charge there.
ChargePoint's app may also list the last successful (?) uses of a given CP station.
You want to arrive at low state of charge and take off once it's gotten too slow and you have enough juice to make it to the next station and its backups. You can see at https://electricrevs.com/2018/07/17/wat ... -to-55-kw/
that after 55%, the charging has slowed way down (rate is in kW) and it eventually ramps down further. This is on a "62.5 kW" DC fast charger'.
Those CPE 100 crap units seem to be like 19 kW at low SoC and ramp up to a higher amount like 21 kW as you get fuller, maybe because of the higher pack voltage at that point.