ARLINGTON -- Spencer Horwitz is the happiest man in Texas.

The Blue Jays’ No. 18 prospect per MLB Pipeline joked that he’d been smiling for 24 hours straight Friday afternoon as he sat in the dugout at Globe Life Field moments after being called up, looking up at a stadium that makes airport hangars look like backyard sheds.

“This is a day I’ve dreamed of,” Horwitz said. “I was never fully sure if it would happen, but here we are. I’ve never been more grateful to have family and friends who are reaching out and who can be here with me.”

Horwitz made his Major League debut in Sunday’s 11-7 loss to the Rangers, batting eighth as the designated hitter. He went 1-for-2 with an RBI and two walks.

Horwitz earned every bit of the promotion, batting .300 with a .421 on-base percentage with Triple-A Buffalo. There’s not much power to speak of for a first baseman, with just two home runs this season and 12 last year, but that’s never been Horwitz’s game. He’s always been known for a top-end plate approach and the ability to put the ball in play.

“I’m a hitter. That’s what I do,” Horwitz said. “I’m going to go up there, give a quality at-bat and compete. I’ve got the power, I’ve got control of the zone and I can move the ball pretty well. That’s what makes a complete hitter.”

Horwitz was never a blue-chip prospect, though. He’s made the slow climb from a 24th-round pick in 2019 to become the club’s No. 18 prospect.

Here’s a look at who could be next, with prospects at each level who aren’t on our Top 30 Prospects list yet -- but are making a push:

Triple-A Buffalo Bisons
Rafael Lantigua is an on-base machine this season, with 51 walks in 57 games giving him a .441 OBP. You don’t expect much power from the 5-foot-7 spark plug, but he’s no slap hitter, fully capable of driving the ball. Add in the fact that Lantigua plays nearly every position on the diamond, and you’re looking at a very intriguing option at the end of an MLB bench.

That’s turning into a crowded table with Addison Barger, Otto Lopez, Tanner Morris, Ernie Clement and others. Right now, it’s Horwitz at the end of the bench offering not versatility, but a unique left-handed bat. There’s not room for everyone, but Lantigua has as much momentum as anyone.

Double-A New Hampshire Fisher Cats
Chad Dallas was coming off a tough professional debut in 2022 with High-A Vancouver. Fatigue was a factor as the season wore on, which strained his control and velocity. Dallas improved himself physically, though, and now you’re starting to see more of what made him the Friday starter at Tennessee and a fourth-round pick in the 2021 Draft. Dallas owns a 2.89 ERA over 10 starts this season, the last five in Double-A, and is putting himself in a good position to compete for a depth role in Triple-A in 2024.

Reliever T.J. Brock is another name to track in New Hampshire. The hard-throwing right-hander dominated High-A to open the year and recently got a promotion, making him one of the most intriguing bullpen arms in the organization.

High-A Vancouver Canadians
The Blue Jays’ third-rounder a year ago, Alan Roden, is looking like this system’s next Horwitz. He came out of Creighton with a reputation for an incredible plate approach after drawing 29 walks and striking out just eight times in his final season there, and he’s carried that right into a .407 on-base percentage with Vancouver.

The Canadians are also powered by the Blue Jays’ 15th-rounders from 2021 and '22, Garrett Spain (.962 OPS) and Michael Turconi (.902 OPS). Both are college picks with some experience already under their belts, making Double-A New Hampshire a possibility later this summer, particularly after the Draft floods some more talent into the system.

Single-A Dunedin Blue Jays
Lefty Kendry Rojas is making a fine case this season, pitching to a 2.84 ERA with 47 strikeouts over 44 1/3 innings. He’s at the front of a young wave of arms you’ll soon see spilling out of the Blue Jays’ complex in Dunedin, Fla.

Another exciting name who shouldn’t be in Dunedin for long? CJ Van Eyk. The Blue Jays’ second-rounder in 2020 underwent Tommy John surgery in ’21 and missed all of ’22, but he’s back and rolling in Single-A as he builds back up. Van Eyk immediately impressed after the Draft and is making up for lost time now. At 24 years old, he should pitch his way to at least High-A this season. He’ll likely stay in the range of three to four innings for the time being, but he has a great chance of jumping back onto our Top 30 list.