Which cloning software? is a good question. It will help us help you.
In my experience, many cloning utilities assume that you want to make the Partition on the Destination unit the same size as that on the Source unit. And I find that a dumb assumption. The most common scenario for cloning is moving to a LARGER storage unit, as OP is doing.
The point is, though, that this is an assumption as a starting point, and it CAN be changed on most utilities. If you watch carefully as the process starts, it analyses the hardware present and asks you which unit is to be Source, which is Destination. Then it presents you with a screen of suggested settings and asks you to approve before proceeding. Do NOT just hit OK! Use the option to change these settings through the menu system. One important change you can make is the size of the new Partition that will be created on the Destination unit to receive the clone. You can make this any size, up to the full capacity of the new unit. Most of the other settings are OK.
If your cloning software has this choice available, you need to re-do the cloning operation. I assume you still have the old SSD with all its data intact. If so, re-do the cloning with two changes. First, you'll have to Delete the Partition(s) on the new larger SSD so it is empty. Make SURE you do this on the larger NEW SSD - you don't want to delete the stuff on the old one! Then proceed with the next steps, using the menus to change the size of the new unit's Partition to full size. When it's all set right, allow the process to go ahead.