Use HOA fees -- which can be thought of as a form of land rent, paid to a hyper-local quasi-government entity -- to pay for things that actually increase the desirability of the units.
For example, invest in better infrastructure that's cheaper to put in place on a community level rather than an individual property owner level, such as electricity conditioning, battery backup, water filtration, solar generation, etc. Use the applied on an individual neighborhood / complex level.
The main complication would be that the HOA fees would need to increase to eat up all of the increases in land rents. That would mean very high (and -- hopefully -- constantly growing) fees. It would also mean stable sale prices (despite the neighborhood becoming increasingly desirable) which is a benefit to new buyers but not really a selling point for owners. So you'd need enough pro-Georgist members of the community to make it happen, this isn't something a handful of homeowners could impose on the rest of the HOA members. Enough people would need to be okay with trading their asset growth for better services.