There is never a wrong time to invest in mutual funds for retirement. So, if you're still looking for the best mutual funds, the Zacks Mutual Fund Rank can be a great guide.

The best way to shortlist great mutual funds is to ensure solid performance, diversification, and low fees. Some are better than others, but utilizing the Zacks Mutual Fund Rank, we have identified three mutual funds that could be solid additions to one's retirement portfolio.

Let's take a look at some of our top-ranked mutual funds with the lowest fees.

Voya Growth & Income Portfolio I (IIVGX Quick QuoteIIVGX - Free Report) : 0.61% expense ratio and 0.6% management fee. IIVGX is part of the Large Cap Blend section, and these mutual funds most often invest in firms with a market capitalization of $10 billion or more. By investing in bigger companies, these funds offer more stability, and are often well-suited for investors with a "buy and hold" mindset. With annual returns of 11.75% over the last five years, this fund is a winner.

Fidelity Select Utilities (FSUTX Quick QuoteFSUTX - Free Report) : 0.73% expense ratio and 0.52% management fee. FSUTX is a Sector - Utilities mutual fund, focusing on companies that provide essential services such as electric power, gas distribution, and water supply to millions of people on a daily basis. Overall, the utility industry is known for its stability and reduced volatility. FSUTX, with annual returns of 10.73% over the last five years, is a well-diversified fund with a long track record of success.

JPMorgan Growth Advantage R6 (JGVVX Quick QuoteJGVVX - Free Report) . Expense ratio: 0.6%. Management fee: 0.55%. Five year annual return: 16.13%. JGVVX is a Large Cap Growth mutual fund, and these funds invest in many large U.S. firms that are projected to grow at a faster rate than their large-cap peers.

These examples highlight the fact that there are some astonishingly good mutual funds out there. If your advisor has you in the good ones, bravo! If not, you may need to have a talk.