That's among the reasons I generally ad an on-hover very slight background color shift to links. It allows me to see what the boundaries of a link are before clicking it. I also dispense with the underline on links by default.

The following is from what I call my "unstyled" CSS -- I'll apply it to bare-bones HTML websites.

    a {
        color: #1e6b8c;
        text-decoration: none;
        transition-property: color, background-color;
        transition-duration: 0.3s;
        transition-timing-function: linear;
        transition-delay: 0.1s;
    }

    a:visited {
        color: #6f32ad;

    }

    a:hover {
        text-decoration: underline;
        background: #f0f0ff;
    }

    a:active {
        background-color: #427fed;
        color: #fffff6;
    }