Adur District Council said it was looking into the possibility of a memorial walk along the River Adur.
People are being invited to submit their thoughts and suggestions to the shorehamremembers.org website.
A shortlist of ideas will be created in January, followed by a public consultation in March.
Eleven men were killed on 22 August when a vintage Hawker Hunter plummeted into the A27 in West Sussex during the Shoreham Air Show.
In a statement, Adur District Council said: "It has been suggested that a new memorial, close to both the river and the proposed site for a new slipway, could form the start and finish of a beautiful walk between the recreation ground and Old Tollbridge.
"This idea potentially also incorporates the temporary memorial board and archway erected by the county council in a meaningful way, and could create a multitude of spaces and perspectives for reflection along the walk's length."
It continues: "While other ideas are being invited this particular one appears to be currently gathering support throughout the community."
In the days after the crash, thousands of flowers, cards, pictures and messages of condolence were left on the Old Shoreham Toll Bridge, which became known as the "Bridge of Flowers".
A memorial service was held at Lancing College's gothic chapel on 22 November, three months after the disaster.
During the service, the Bishop of Chichester, The Right Reverend Dr Martin Warner, praised the "human courage, generosity and compassion" of the emergency services and said this was a time when "grief must blend with love" in a celebration of those who died.

Det Supt Tanya Jones said a member of the public discovered the body in the Basingstoke Canal at Woodham Lock in West Byfleet on Saturday.
Detectives are treating his death as suspicious. Officers are looking into the circumstances that led to him being found in the water.
Police believe they know who the man is and have informed his family, but have not yet released his name.
Officers want to speak to anyone who was on the towpath, lock bridge or nearby footpaths between Friday night and Saturday morning and who might have heard or seen anything suspicious.

Dubbed Scotland's Route 66, NC 500 loops around the north Highlands' coast and interior.
The seven included Commonwealth Games cyclists Lee Craigie and Anne Ewing and British 24-hour mountain bike champion Rickie Cotter.
The time trial over Saturday and Sunday started and finished in Inverness.
The other riders were author and travel blogger Emily Chappell, transcontinental cyclist Gaby Leveridge, plus Zara Muir and Jo Thom, winners of the women's pairs event at this year's Strathpuffer endurance ride near Strathpeffer.
Their time sets a new record for cycling the route.
Scottish endurance cyclist Mark Beaumont previously completed the NC 500 solo in 37 hours 58 minutes.
The NC 500 features several challenging ascents and descents, including the Bealach-na-Ba at Applecross.
The unclassified road rises to about 626m (2,053ft) over about four miles (8km).
A permanent memorial is to be created as a "fitting, lasting tribute" to the 11 men who were killed in the Shoreham air disaster in August.
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A man's body has been pulled from a canal in Surrey.
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Seven women cyclists have set a time of 36 hours to complete the gruelling 518-mile (833km) North Coast 500 in a non-stop team time trial.