legs etc. Edges of the bed frame, bases of the walls.
I also used Diatomaceous powder all over under my bed, baseboards etc. Everywhere I saw a crack.
I changed the tape often, you could see the bastards stuck in it, struggling with their fat bellies of blood.
Eventually it got less and less. I would find fewer and fewer. Even dead adults that had laid eggs in death, which hatched! The babies died on the tape there beside their mother. lol
I did find a chair that had a colony that I had overlooked but discovered and used Raid several times (outside) and then spray-painted.

No problems since. I still have a few tape strips and inspect them periodically for bugs.

I've been bedbug free for about a year now and it feels great.