I made a spreadsheet for 17" OEM wheels (7" width/48 offset) on my stock 2016 Subaru Forester (2.5i Premium, stock everything, not lowered or raised) for Michelin A/S 3+ (aka "best all weather tire"). I considered adding the Pilot Sport 4S (aka "best summer tire"), but it seemed like it would be overkill for a Forester.
Helpful link on upsizing: https://www.popularmechanics.com/cars/how-to/a3682/4281033/
General info links:
motoiq.com
https://www.subaruforester.org/threads/tire-upgrade-on-2010-forester.416866/#post-4336482
Tire size comparison links:
tiresize.com
Summary:
Closest tire size for Michelin A/S 3+ on 17" OEM wheels on 2016 Forester is 235/55/R17
The one Michelin makes is designated as 235/55 ZR17 99W
I am going all-weather because I live in Northern VA which does not need winter tires, but temperature gets below freezing in Feb or March so running performance summer tires on a daily driver that will never be off road does not make much sense. Too much traffic in the area anyways.
Helpful link on upsizing: https://www.popularmechanics.com/cars/how-to/a3682/4281033/
General info links:

How to PROPERLY select and size TIRES for PERFORMANCE - MotoIQ
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Tire size comparison links:

Tire Size Comparison
Tire size comparison the easy way. Use our tire size comparison calculator to compare diameter, width, sidewall, circumference and revolutions per mile.
Summary:
Closest tire size for Michelin A/S 3+ on 17" OEM wheels on 2016 Forester is 235/55/R17
The one Michelin makes is designated as 235/55 ZR17 99W
I am going all-weather because I live in Northern VA which does not need winter tires, but temperature gets below freezing in Feb or March so running performance summer tires on a daily driver that will never be off road does not make much sense. Too much traffic in the area anyways.
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