You can populate my board with 5A, 24V coil SPST relays
https://www.digikey.com/product-detail/en/omron-electronics-inc-emc-div/G5NB-1A-E-DC24/Z2773-ND/1731473
The TPIC6C595 shift register that sinks the coil current can handle that no problem, it's rated to 33V.
I've designed in an LED indicator per channel, and can customize the board size if you can define what it is you want. Right now it's 50x80mm.
If you want IDC, I can even add that too, altho that usually implies 2x3 or 2x5 or 2x8 or whatever length header and smaller 28 gage 0.05" spaced ribbon cable. What kind of currents are you switching?
http://www.king-cart.com/phoenixent/category=RECEPTACLES-SOCKETS+IDC+.1SP+%2526+2MM+SP
http://www.king-cart.com/phoenixent/category=WIRE+%2526+CABLE+-+BULK