The phrase "a sizeable pool" is correct and usable in written English.
It can be used to refer to a large group or collection of something, often people or resources, in various contexts such as research, recruitment, or data analysis.
Example: "The study was conducted on a sizeable pool of participants to ensure the results were statistically significant."
Alternatives: "a substantial group" or "a large collection".
The evidence suggests there is a sizeable pool of further capital available if the demand was there.
As it stands, less than two-thirds of high school graduates go directly to college, thereby leaving behind a sizeable pool of students from disadvantaged backgrounds who could benefit from some form of postsecondary education.
While this job growth stands to be a significant source of employment, it will only be realized if there is a sizeable pool of skilled workers from which employers can draw or if employers invest in on-the-job training for unprepared workers.
Its topmost observation deck is equipped with a bar, a sizeable pool, sunbathing chairs and a canopied lounge area.
Incumbents have at least one clear advantage: They already have access to a sizeable pool of customers.
The synthetic control method (SCM) offers one systematic and transparent way to select cases for comparison, from a sizeable pool, by focusing upon similarity in outcomes before the intervention.
Adjoining the palace is a sizeable swimming pool and a presidential gym, though the exercise bikes are still in their containers.
By using a panel of T cell receptor-like antibodies specific for viral peptides bound to mouse D(b) major histocompatibility complex class I molecules, we show that an exceptional peptide (PA(224-233)) expressed as a viral minigene product formed a sizeable cytosolic pool continuously presented for hours after protein synthesis was inhibited.
User testing is likely a key ingredient in further progressing the translator's efficacy, so this wider beta launch should mean that it's closer to being ready for prime time, and that it's about to get smarter, faster thanks to a sizeable user-pool increase.
Countries like Sudan and Nigeria offer access to large oil reserves, sizeable pools of low-cost labor and minimum environmental safeguards.
The spa has six treatment rooms, a sizeable indoor swimming pool, steam room and sauna.
