Flinging a misslie on a line can work, but ensuring it goes over or past the boat rather than onto it can be problematical.
A 30 foot fishing pole has its own hazards for everybody in the vicinity, but is entetaining to watch from a distance. Any extending rod through the air is a cantilever, and getting one strong enough to support its own weight and be light enough for one person to handle is not easy.
Floating rods sound good-ish. Might be best for close-in weed strandings.
A boat towing a line, preferably floating, to circle the strandee, then manually pull both in, works.
Provided there are no other obstructions, the walked line works well.