Looking for advice – inventory management system that plays nice with Magento MSI

Hi all

We have MSI already in use and there are couple websites connected to NetSuite using FireBear extension (all within one Magento 2 Open Source app).

The plan is to roll out a new website within the same Magento install and try a different ERP/Inventory management system (not NetSuite for various reasons), keeping existing websites working as is for now.

Any advise on such inventory management system with native or reliable 3rd party Magento 2 integration, so we don’t have to write a custom one?

Has to play nicely with MSI and multi-site, support configurable products.

The business is closer to start-ups than to enterprize, so should be reasonably priced.