As has been the case repeatedly in recent years, the Lakers are going to be limited in their spending power this offseason. The difference between this summer versus previous ones is that they almost certainly will have a more complete roster.
It lessens the weight of needing to hit on the signing and it allows the Lakers to perhaps take more of a risk. Ultimately, thought, the best way for the team to bring in an external free agent of impact will be the taxpayer mid-level exception (MLE).
There is a chance they would have the taxpayer MLE but it requires some fairly notable changes and the Lakers not bringing back players which appears to be the opposite way things are trending.