This has always been a tough one
Single Leg DL is a good motion for stability and mobility and flexibility and if you can grab something of some weight, it makes a greatcore and stabilizer exercise in addition to hamstring work.
Bridges are another option, though you need to focus on dragging the floor toward your rear with your heels to get more hamstring involvement. Also straight leg bridges, where you elevate your feet onto something like a bed or chair work the hammers quite well too.
Glute ham raises were you have someone anchor your feet down are murder, and you can use something sturdy if viable. These are tough but you can do eccentric only and use your hands to assist to the floor and back up.
If you have paper plates or something that slides like furniture movers, you can do hamstring curls as well in a supine position, just dragging the plates a lon the ground. Bands, if an option, will allow curls and pull throughs as well.
Don’t forget the best options. Sprint!!! Sprinting and jumping, specifically broad jumping, are great for the PC and utilize the fast twitch muscle fibers which the hammies are a great deal made up of. Good luck!