OG Nate Davis (Titans free agent)
Drafted in 2019 by Tennessee Titans, Nate Davis has been consistent in the run game for them and could provide that same spark alongside Meinerz.
According to PFF, Davis improved drastically as a pass blocker this year, having the highest grade (take the PFF grading system for how you will) of his career. He's more known for his power in the run game while playing all his snaps at right guard.
Since Meinerz has played the majority of his snaps at RG, he has some experience at LG too. If the Broncos consider Davis (as they seriously should), Payton and the coaching staff can figure out who will fit best at which side in the run scheme. Nonetheless, Davis will be a perfect fit for Denver.
Davis is 26 years young and will be hitting his prime years of playing. According to Spotrac, his market value is $7.4M annually. That'd be $2M annually cheaper than the projected market value of Dalton Risner.
Not only will he be a cheaper and more reliable option than Risner, but he will also provide consistency at the position. Payton could develop Davis nicely in Denver and provide strength in the interior of the line.