Mag ride in my opinion is a requisite for 19" but some are happy with non mag ride comfort. Note that for a saloon with 19" alloys optioned you have to have mag ride on a factory order. The following is for 235/35/19 tyres. Note the ET for Audi 19" S3 wheels is 49 and bolt circle 5 x 112
BBS....CH026 will fit ....ET 50... 5 x 112 bolt circle
CHR122 will fit but the ET of 40 will mean the wheel will stick our further from the body and could cause an issue with wider profile tyres
LM249 will fit ET48...this is a pricey alloy...way more expensive than Audi 19" S3 alloys, they are top of the line 2 piece die forged wheels.
I am not familiar with the other brand.
I suggest that you do some more research and contact the manufacturer or distributor of any wheel prior to purchase for suitability on your vehicle. Also, the tyre profile you desire has a huge bearing on suitability for the rim size and your vehicle. The profile is the middle number listed e.g. 235/35/19.
As well most aftermarket alloys require you purchase tapered lug bolts not radius as supplied by Audi and again the length of these bolts should be discussed as the wheel design etc has a bearing for the chosen application.