You can search for zip tie mounts and find ones big enough for Velcro:

Zip Tie Adhesive-Backed Mounts 100 Pack by Nova Supply. Professional-Grade, UV Black Cable Tie Bases: 1.1 x 1.1. Screw-Hole Anchor Point Provides Optimal Strength for Long-Term Durability & Use https://www.amazon.com/dp/B06XNBS6TG/ref=cm_sw_r_cp_api_i_IbwFEbN6F0082

50 Pcs Black Cable Tie Base Saddle Type Mount Wire Holder, Cable Zip Ties with Self-Locking 6 Inch & 0.145 Inch,#8 x 0.6 Inch Deep Thread Pan Head Screws Black https://www.amazon.com/dp/B07J4H65DK/ref=cm_sw_r_cp_api_i_ncwFEbX3QJY5K