Use Fuse to connect via multiple aggregators (Plaid, Finicity etc)
Saw Fuse on Ycombinator, it promises to allow fusing multiple aggregators, and through an API that is supposed to be very similar and easy to migrate to from current Plaid backends.
Lots of aggregators around, seems the best path to avoid issues is to use multiple or all of them. Monarch Money for example uses a mix of Finicity and Plaid