Jacksons BBQ is pretty good. I went to high school with both Gatlin and Caswell. Good guys.
Mais is kinda trash. Good if you want late night Asian food but overpriced and the quality is lacking. It was good 10-15 years ago. Many have caught up or surpassed Mais. It's also in midtown. Huyhns is the place you want to go and walking distance from the ballpark. There are actually a ton of bars and restaurants on St. Emmanuel a few blocks away:
https://www.tripadvisor.com/Restaurant_Review-g56003-d2424940-Reviews-Huynh_Restaurant-Houston_Texas.html
Bad News Bar - great cocktails and ambience. Located on the second floor with an amazing balcony overlooking Main St.
Local Foods - nice restaurant with fresh food and great drinks. Like many restaurants downtown it closes early (8 or 9pm). Great spot for lunch
Pappas Steakhouse - best steakhouse in Houston IMO
Conservatory - a cool place that is more like a food hall with several different restaurants and beer/wine options. It's open til 3am as well. My studio is downtown so I go here often.
Tout Suite - great coffee, pastry and food
I'm just giving you options downtown. You can venture off to Montrose and Midtown but most of the recommendations are walking distance or short uber/train ride. Have fun brother!