Resource for Plants Toxic to Pets?

I recently was given a plant as a gift just before I left and a sitter came. It turns out it was toxic to cats and my cat nibbled on it. Thankfully, it worked out okay despite a lot of stress for both me (9 hours time difference) and my poor sitter.

Do you have a favorite app or “go to” regarding which plants are okay? I also traveled with my cat recently and the “pet approved” rental had toxic plants (which I investigated after the recent scary experience). I don’t garden and it was tricky to figure out what plants where so I could google them.