Since you haven't specified what displacement range or style of bike you are looking at, we'll give you multiple options to choose from. 

The Royal Enfield Hunter 350 is a good option because it will be comfortable, stylish and will give you decent performance and fuel economy too. Another bike worth taking a look at is the Honda CB300F, which is a friendly naked bike that will also be comfortable and fuel-efficient. You can also take a look at the Hero Xpulse 210, which will be far the most comfortable machine of all the bikes mentioned here. 

If you want to stick to the same displacement bracket, bikes like the TVS Apache RTR 160 4V and Bajaj Pulsar N160 are the options to consider. Take a test ride of everything you're considering before making a decision.  

Since you are already familiar with the TVS after-sales experience, we would recommend you take a look at the TVS Apache RTR 160 4V. 

It is a smooth, comfortable, fuel-efficient and feature-rich offering. However, do bear in mind, it can feel cramped for larger riders, so we'd advise you to take a test ride and figure out if that is the case for you. Another option to consider is the Bajaj Pulsar N160, which has similar attributes to the Apache bikes but is a more spacious machine. 

All the options you've shortlisted are great at being decently reliable point A to point B runabouts. 

Going for a 125cc or 150/160cc option like the Hero Glamour, Bajaj Pulsar N160, or the TVS Apache RTR 160 4V will give you considerably more fuel efficiency than a bigger machine like the TVS Ronin, but at the cost of performance. 

We'd recommend taking a test ride of all the options you're looking at and then deciding.  

Since you're shopping in the 150/160cc segment and want flashy looks, good features and decent mileage too, here are all the options you should consider. The TVS Apache RTR 160 4V is a smooth, comfortable yet decently sporty machine. Also, since you mentioned that you want a more manageable machine, we'll stick with options that have a low seat and are lightweight. In a similar vein, you can also consider the Bajaj Pulsar N160 and Honda SP160, too. 

If you can extend your budget, bikes like the KTM 160 Duke and Yamaha MT-15 will also fit the bill because they have punchy performance, yet return good fuel efficiency and are lightweight and manageable too. 

If you're not going to go on longer journeys often and want to stay in the same displacement range as your Unicorn, the Bajaj Pulsar N160 and TVS Apache RTR 160 4V will serve you well. If you want a small step up in terms of performance without sacrificing too much fuel economy, the Bajaj Pulsar N250, Honda Hornet 2.0 and Suzuki Gixxer 250 will fit the bill. You can also take a look at the KTM 160 Duke and Yamaha MT-15 because, while they have smaller displacement engines, they are liquid-cooled and offer punchy performance with great fuel economy. 

The more laidback Royal Enfield Meteor 350 and Honda CB350RS will definitely feel more special in their riding experience and fit & finish. Also, it will be significantly more expensive to buy and maintain compared to the aforementioned bikes. 

Since you haven't specified your budget, we'll recommend something that feels like a step up without hurting your wallet too much. You can take a look at the Bajaj Pulsar N160, Suzuki Gixxer 150 and TVS Apache RTR 160 4V - all three are comfortable and fuel-efficient machines which will feel like an upgrade over your Radeon. Do take a test ride and see which one fits you best, because your daily running is quite high. The Apache is a little cramped in the way it folds your legs, so you may want to take a look at the other two.