GoodLeap — my pick for reputation. Best-regarded name in the space, US-based support that actually answers, clean digital process, fair year-5 buyouts, transferable agreements. Runs a touch pricier, and their loans carry dealer fees (their only real complaint — and industry-standard). Best for: people who'll pay slightly more for take-care-of-you service.
LightReach — rock solid. Only lends through vetted installers, which kept them healthy while competitors cratered. Solar + battery in ONE agreement — the strongest structure under net billing. Best for: NEM 3.0 homeowners who want one payment covering everything.
EnFin — good price, weak service. Often the most competitive pricing, backed by Qcells, flexible credit (~600+). But the customer-service reputation is genuinely rough — read the reviews yourself. Best for: price-driven buyers with a strong installer who won't need financier hand-holding.
Sunrun — big and pricey. The giant; will exist in 25 years, strong ~95% production guarantee. But consistently among the most expensive (~$4.50/W financed), service doesn't match the size, and buyouts only at certain years. Best for: brand-over-price buyers, full stop.
With any PPA, who backs the agreement matters more than the logo on the proposal. Ask: "Who owns this agreement, and who backs them?" If your rep can't answer, that's your answer.