Ideas for my bachelor thesis [on hold]

please can anyone suggest me ideas for my bachelor thesis. I should choose a website and perform some studies about it (heuristic,cognitive,etc) ..but dont know from where to start, hope somebody can suggest me some tip.

Here informations about my thesis

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Topic is : Collaborative versus traditional UI Study methodology

Objectives of thesis: Study the traditional UI test methodologies and according to your findings to try define the main differences between the traditional and collaboratvie UI Study. Prepare list of typical use cases, when is a collaborative approach better in comparison with classical.

Methodology:Choose a website or app, for selected information system perform: - Heuristic study, - Cognitive study, - Collaborative study partially cognitive, partially heuristic.

Compare these studies and define results.

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Thanks