Bulma class: .is-right

    <div class="field">
        <label class="label">Name:</label>
        <div class="control has-icons-left has-icons-right">
            <input class="input is-success" type="text" placeholder="Text input" value="bulma">
            <span class="icon is-small is-left">
                <i class="fas fa-user"></i>
            </span>
            <span class="icon is-small is-right">
                <i class="fas fa-check"></i>
            </span>
        </div>
    </div>