Personally, I'd like to see Trump, if elected, do this.
On day 1 he issues an executive order that every agency of the federal government within 30 calendar days submit an exact word and page count of the regulations they currently have in the federal register. Until they do and it is correct (somebody is checking behind them), 10% of their current FY budget is withheld.
Once all those agencies submit their page and word count, a second executive order is produced. Remove 5% (the exact amount is variable here) by word count and page count by September 30, 2025. Until this goal is met, and verified, 10% of the agency's budget is withheld. This executive order does not preclude enforcing all current regulations, nor making new regulations, only that your agency will have 5% less words and pages of regulations by 9/30/25 or you lose 10% of your budget for the next FY.
Repeat 4 times over the administration. This means at the end of 4 years every agency of the federal government has gotten rid of, by page and word count, roughly 18% of their current regulations.
This would have an incredibly positive impact on the economy.