The phrase "along with a substantial" is correct and usable in written English.
It can be used when you want to indicate that something is included or accompanied by a significant amount or degree of something else.
Example: "The report includes several key findings, along with a substantial amount of supporting data."
Alternatives: "together with a considerable" or "in addition to a significant".
Alsos personnel managed to find and remove many of the German research effort's personnel, along with a substantial portion of the surviving records and equipment.
The agency estimates that about $600 million in new investment has been added to the economy since the development began, along with a substantial number of new jobs.
Supporters of Fatah and Hamas were present in large numbers along with a substantial number of non-aligned young men and women.
The settlements with the five banks generally included deferred prosecution agreements along with a substantial forfeiture of assets comparable in size to the basket of illegal transactions the banks engaged in.
Other bridges run north of Vic West to neighbouring Burnside, a large region that historically had shipbuilding, mills, factories, and other industries, along with a substantial residential component to house the workers.
In particular, the declining numbers of men working in heavy industry jobs (such as mining) and manufacturing towards jobs in the service sector, along with a substantial reduction in the proportion of men smoking since the 1980s".
"It had been ripped out with no explanation, along with quite a substantial chunk of the wall," said Alan Strickland, a member of the local council, describing the bizarre scene that greeted passers-by the other weekend.
"We are so inexperienced, and this is Game 7," said Johnson, one of two Hawks (along with Mike Bibby) with a substantial playoff résumé.
White House officials said the cap-and-trade plan would be formally announced on Friday along with a "very substantial financial commitment" from China to help the world's poorest countries fight climate change.
These data suggest a diminished oxidative stress encountered in a hypoxic microenvironment of spiral ganglion SPCs, along with a greater substantial capacity than normoxia in response to mitochondrial perturbation due to a higher maximum respiratory capacity.
