From the Guidelines

Loop diuretics, such as furosemide and torsemide, are the best diuretic options to alkalize the blood.

Loop diuretics: These are the preferred diuretic agents for use in most patients, as they increase sodium excretion up to 20% to 25% of the filtered load of sodium and enhance free water clearance 1.
Thiazide diuretics: These may be considered in patients with hypertension and mild fluid retention, but they are less effective than loop diuretics in patients with impaired renal function 1.
Aldosterone antagonists: These, such as spironolactone, may be used in combination with loop diuretics to control ascites in patients with liver cirrhosis, but they are not typically used as first-line agents for alkalizing the blood 1.

Furosemide: The starting dose is 20–40 mg/day, with a maximum dose of 160 mg/day 1.
Torsemide: The starting dose is 10 mg/day, with a maximum dose of 100 to 200 mg/day 1.
Bumetanide: The starting dose is 1.0 mg, with a maximum dose of 4 to 8 mg 1.

Electrolyte depletion: The risk of electrolyte depletion is markedly enhanced when two diuretics are used in combination, and potassium deficits can be corrected by the short-term use of potassium supplements or the addition of magnesium supplements 1.
Hypokalemia: This is a common adverse effect of loop and thiazide diuretics, and can be managed with potassium supplements or the addition of potassium-sparing agents such as spironolactone or amiloride 1.
Hyponatremia: This is a common adverse effect of thiazide diuretics, and can be managed by reducing the dose of the diuretic or adding a loop diuretic 1.

From the Research

The following diuretic options can be considered to alkalize the blood:

Thiazide diuretics, such as hydrochlorothiazide, which inhibit sodium reabsorption in the early distal convoluted tubule 2
Loop diuretics, such as furosemide, which block chloride and sodium reabsorption by inhibition of the Na/K/2Cl cotransport system in the thick ascending limb of the loop of Henle 2, 3
Potassium-sparing diuretics, including aldosterone receptor blockers (such as spironolactone and eplerenone) and epithelial sodium channel blockers (such as amiloride and triamterene) 2

These diuretics work by:

Inhibiting sodium transport systems along the length of the renal tubule 4
Influencing the renal handling of electrolyte-free water, calcium, potassium, protons, sodium bicarbonate, and uric acid 4
Increasing the excretion of sodium and water, which can help to alkalize the blood 3, 5

When using diuretics to alkalize the blood, it is essential to consider the following:

The dose and potency of the diuretic, as higher doses can increase the risk of side effects 2, 3
The potential for electrolyte and acid-base disorders, particularly with the use of thiazide diuretics 4
The need for careful monitoring and dosage adjustment to minimize the risk of complications 4, 6