There are no direct swaps, but 4Runner seats (from the same generation) have 3 bolts that will line-up and the 3rd one I think you will need to drill a new hole in the floorboard.
The CT seat installation guide on OEM transplants (which I authored) is not just for Volvo seats.
Celica seats will swap in if you're willing to do surgery to either (a) transplant your Taco bases onto the Celica seat structures or (b) fabricate up new Taco-configured bases to attach the Celica seats to.
Other Toyota seats that've been transplanted into Tacos include ones from Corolla and Camry. I've seen a claim (no pics) of a transplant from an MR2.