The first place I would look is local. Your local CC might be your cheapest option it depends on the state. Plus they offer a lot of scholarships and other programs (many states offer free or discounted CC to Senior Citizens for example).
Another option is Alabama does accept CLEP. So if you would like you can do CLEP tests to get college credit which might be even quicker and cheaper than the CC route.
Note 50% of your degree must come from a 4 Year Univesity with 25% of that specifically at Alabama. So that means you can transfer in about 60 credits from CC and/or CLEP towards an engineering degree. This large number seems difficult due to specific courses required for an engineering degree but something to keep in mind.
https://catalog.ua.edu/undergraduate/abo...amination/
Another option is Alabama does accept CLEP. So if you would like you can do CLEP tests to get college credit which might be even quicker and cheaper than the CC route.
Note 50% of your degree must come from a 4 Year Univesity with 25% of that specifically at Alabama. So that means you can transfer in about 60 credits from CC and/or CLEP towards an engineering degree. This large number seems difficult due to specific courses required for an engineering degree but something to keep in mind.
https://catalog.ua.edu/undergraduate/abo...amination/