I use a number of different review sites to find ICOs that I find interesting. The ones I have found to be most useful are the following.
https://icobench.com/A useful site, with an added 'expert review' on most projects. These reviews are helpful, but should be taken with a pinch of salt as the definition of expert can be fairly loose (they do operate a weighting system which balances the reviews slightly). Filters on offer here are great, you can select based on category, restricted areas, documentation required, accepted currencies, platform and more. More involved info available once clicking on the project. Ratings calculated from the expert reviews and based on ICO profile, team, vision and product.
https://foundico.com/Another decent site with some helpful filters (category, country and platform), as well as the usual ongoing, upcoming, past and an additional scam option. Sponsored links at the top (standard for all the ICO review sites), easy to navigate to projects you are interested in. Both pre-ICO and ICOs listed, plus a percentage completion count to the end date of the ICO. Rated on main info, finance, product, team and marketing. Also have a section to check on performance of completed ICOs.
https://icodrops.com/Popular ICO review site, with an active whitelist addition (direct link to join the whitelist of projects listed). Keeps a running total of projects' funds raised against target figure as an indicator for popularity. Organised by finish time (for ongoing ICOs) and start time (for upcoming ICOs), helpful if you like to see progress and don't want to wait around for projects, or if you want to get in early when bonuses are likely to be higher. Rating system slightly different to other sites, focus on hype, risk and ROI (return on investment). Not sure how these ratings are calculated, presumably by site team, who then give an overall score.
There are loads more sites out there, but these are the three I currently find to be most helpful. Any other recommendations?