CAN controllers are still implementing mostly classical CAN. Manufacturers already having CAN FD implementations are marked with a happy smiley (mostly based on rumor).
Kvaser has a very big collection of available controller and transceiver too.
Read more about CAN certified chips.
Discussion about Small Chips, which means CAN controllers or micros in a small housing.
Companies providing CAN IPs. Most of them can be used to be implemented in FPGAs. Not all are licensed but only used in the companies own products.