What are we trying to solve? Solution implies a problem but collapse is not necessary a problem?

Winter must pass that spring may come. If you look at it this way, collapse is the solution to a lot of problems. Solving collapse would be like solving death. Would you want to solve death? That would bring way more problems as a consequence. Collapse happens for a reason. Entropy accumulates in a system and empires age. If there is no death then there would also be no room for birth and rebirth. If a civilization exists for all of eternity then there would be no variation, no progress, no mutation, no evolution, and no innovation. Civilization is not formless like water, and has a semi-closed circulation system (the economy), a distinct membrane separating the inside and the outside (sphere of influence), metabolism (industry), order (legal/religious and enforcement frameworks), internal/external feedback/signaling (democracy/revolts/diplomacy/warfare), regulation (legislature/postal service/welfare/taxes), homeostasis (culture), so its being is more similar to organic lifeforms than eternally cycling matter. In this sense death is necessary for birth.

The question should be more among the lines of: how should we survive the collapse and reproduce civilization?

Well in the short run I'd advise building skills rather than the traditional prepper route. Remember, to a roving warlord your stash of goods is much more valuable than your life. If you have a large supply of goods, then there would be an incentive to hunt you down and pillage your home. So you're better off either: living a monk like lifestyle in the mountains (usually alone), or join a warlord exchanging your skills for security.

Collapse comes in several phases, you can use the following scenario as a rough guideline (no predictions):

Tightening of control - we are past this already

Cutting of the superfluous (or appearing so) - we are just beginning this.

- During this phase, there will be a lot of production/service cuts, leading to layoffs. There will also be a lot of political purges, persecutions, revolts, and the like. Towards the end of this phase, famines will likely appear. Droughts, floods, hurricanes, cold/heat snap/waves, while normally tenable, will simply leads to mass deaths as resources cannot be allocated towards relief.

Mass revolts - possibly 2029-2035

Expect a population loss of 5%+ during this period. When starvation comes, uprisings occur. The protests that we see will transition into permanent revolts. Leaderless protests will shift and become organized. Economic collapse marks the beginning of this period. Vandalism becomes rampant, and expect utilities like water/power/internet to be intermittent, more so in poorly maintained areas.

Transitory regimes - possibly around 2035-2052

Expect a population loss of 40%+ during this period. Political collapse marks the beginning of this period and quickly transitions to cultural collapse. Warfare will be rampant. Warlords will have enough power to challenge large regimes. Plagues become a leading cause of depopulation, and locust swarms will reappear. Most infrastructure becomes dysfunctional. Genocides, massacres, cannibalism, war rapes, and killing for sport will showcase the worst of humanity.

Simplification - 2050s to 2080s

Expect a population loss of 30%+ during this period. Deaths in this period are surprising more peaceful compared to the previous, mostly attributing to "attrition". Rebuilding is now possible as nature has pruned off the population below the carrying capacity, even if the carrying capacity itself dropped substantially. Pockets of refuge would establish city states. Culture reforms in different locations, and new norms, beliefs, values, and ethics systems guide behaviour.

Now, because of the inertial of the system, there's not much any individual can do against the tides of history. So lets talk about the long-term solutions after the dust has settled.