Could you recommend one ?

To fit 30"

Compatible with all machines for an opening of 26.75W x 10.75D
-IKTCH IKB01-30-A *****
-HERMITLUX 30 TB1370G-AC-11
-COSMOS COS30IRHP
-HOME BEYOND H70-27
-FIREGAS FGS-USB21G70AC
-EALLMALL EL11-30
-STREAMLINE T-4015-1-DL
-VEVOR E70-27

To fit 36"

-IKTCH IKB02-36 (17D) @ TOTAL WIDTH 35.75 x TOTAL DEPTH 19.25 *****
-ZLINE 34 - 695-34 (13.5D) @ TOTAL WIDTH 35.75 x TOTAL DEPTH 19
-ANCONA 34 AN-1313 (15D) @ TOTAL WIDTH 35.75 x TOTAL DEPTH 19
-ZEPHYR - TORNADO I -AK8134BS (11D) @ TOTAL WIDTH 35.75 x TOTAL DEPTH 19

To fit 48"

-ZLINE 721-46 @ TOTAL WIDTH 47.75